SYMMETRICOM INC
8-K, 1999-02-24
TELEPHONE & TELEGRAPH APPARATUS
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<PAGE>
 
               UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549


                                  FORM 8-K


                               CURRENT REPORT


                     PURSUANT TO SECTION 13 OR 15(d) OF
                     THE SECURITIES EXCHANGE ACT OF 1934


Date of Report (Date of earliest event reported): February 10, 1999


                              SYMMETRICOM, INC.
           (Exact name of registrant as specified in its charter)


        California                      0-2287                  95-1906306
(State or other jurisdiction         (Commission             (I.R.S. Employer
of incorporation or organization)    File Number)           Identification No.)


2300 Orchard Parkway, San Jose, California                 95131-1017
(Address of principal executive offices)                    (Zip Code)


Registrant's telephone number, including area code:  408-943-9403


                               Not Applicable
        (Former name or former address, if changed since last report)
<PAGE>
 
ITEM 2. ACQUISTION OR DISPOSITION OF ASSETS

Agreement for Disposition of Linfinity Microelectronics Inc., a subsidiary of
- -----------------------------------------------------------------------------
Symmetricom, Inc.
- -----------------

  On February 10, 1999, Symmetricom, Inc., a California corporation,
("Symmetricom" or "Registrant"), Linfinity Microelectronics Inc., a Delaware
corporation which is a subsidiary of Symmetricom, ("Linfinity"), Microsemi
Corporation, a Delaware corporation, ("Purchaser")and Micro-Linfinity
Acquisition Corporation, a Delaware corporation and wholly owned subsidiary of
Purchaser, ("Purchaser Sub") entered into an agreement in which the Purchaser
Sub shall be merged with and into Linfinity upon satisfaction of conditions to
consummation including approval of the merger by Symmetricom's shareholders.
Following the merger, the separate corporate existence of Purchaser Sub shall
cease and Linfinity shall continue as the surviving corporation.

  The merger is contemplated in accordance with the Agreement and Plan of
Reorganization dated as of February 10, 1999 (the "Agreement") by and among
Symmetricom, Linfinity, Purchaser and Purchaser Sub, which is attached as
Exhibit 99.2 hereto.  Symmetricom and Microsemi Corporation issued a joint news
release concerning the Agreement and the proposed merger, which is attached as
Exhibit 99.3 hereto.

  The aggregate purchase price payable for all the capital stock of Linfinity in
the merger is $24,125,001 (the "Purchase Price") of which $1,125,000 shall be
held in escrow for a period of two years.  The consideration to be paid to
stockholders of Linfinity is $2.96 (the "Preferred Price Per Share") and $1.46
(the "Common Price Per Share"). The outstanding capital stock of Linfinity is
comprised of 6,000,000 shares of Preferred Stock and 4,197,824 shares of Common
Stock.  There are stock options outstanding to purchase 121,449 and 109,000
shares of Linfinity's Common Stock at $0.50 and $0.80 per share, respectively.
The holders of these options will be entitled, immediately prior to the merger,
to receive in cash the difference between $1.46 and the option exercise price.

ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS

(a)  Financial Statements of Business Acquired

     Not applicable.

(b)  Pro Forma Financial Information

     99.1  1.  Unaudited Pro Forma Condensed Consolidated Statement of
               Operations for the six-month period ended December 31, 1998.

           2.  Unaudited Pro Forma Condensed Consolidated Statement of
               Operations for the year ended June 30, 1998.

           3.  Unaudited Pro Forma Condensed Consolidated Balance Sheet as of
               December 31, 1998.

(c)  Exhibits

     99.2  Agreement and Plan of Reorganization by and among Linfinity
           Microelectronics Inc., Symmetricom, Inc., Micro-Linfinity
           Acquisition Corporation, and Microsemi Corporation dated as of
           February 10, 1999.

     99.3  News release dated February 11, 1999, relating to the merger
          contemplated in accordance with the Agreement and Plan of
          Reorganization by and among Linfinity Microelectronics Inc.,
          Symmetricom, Inc., Micro-Linfinity Acquisition Corporation, and
          Microsemi Corporation dated as of February 10, 1999.
<PAGE>
 
SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.



                                          SYMMETRICOM, INC.
                                          (Registrant)

DATE:  February 24, 1999                  By: /s/ Thomas W. Steipp
                                          Thomas W. Steipp
                                          Chief Executive Officer
                                          and Chief Financial Officer
                                          (for Registrant and as         
                                          Principal Financial and       
                                          Accounting Officer)

<PAGE>
 
                                                                  EXHIBIT 99.1

                              SYMMETRICOM, INC.
                        UNAUDITED PRO FORMA CONDENSED
                     CONSOLIDATED FINANCIAL INFORMATION

On February 10, 1999, Symmetricom, Inc., a California corporation,
("Symmetricom" or "Registrant"), Linfinity Microelectronics Inc., a Delaware
corporation which is a subsidiary of Symmetricom, ("Linfinity"), Microsemi
Corporation, a Delaware corporation, ("Purchaser")and Micro-Linfinity
Acquisition Corporation, a Delaware corporation and wholly owned subsidiary of
Purchaser, ("Purchaser Sub") entered into an agreement and plan of
reorganization in which the Purchaser Sub shall be merged with and into
Linfinity upon satisfaction of conditions to consummation including approval of
the merger by Symmetricom's shareholders.

The following unaudited pro forma condensed consolidated balance sheet as of
December 31, 1998, and the unaudited pro forma condensed consolidated statements
of operations for the year ended June 30, 1998, and the six months ended
December 31, 1998 give effect to the disposition of Linfinity Microelectronics
Inc.

The unaudited pro forma condensed consolidated financial statements are intended
for informational purposes only and are not necessarily indicative of the future
financial position or future results of operations of the existing company, or
of the financial position or the results of operations of the existing company
that would have actually occurred had the disposition been in effect as of the
date or for the periods presented.

These unaudited pro forma condensed consolidated financial statements and the
accompanying notes should be read in conjunction with the historical
consolidated financial statements and the related notes thereto of registrant
contained in its 1998 Annual Report on Form 10-K and its Quarterly Report on
Form 10-Q for the quarter ended December 31, 1998.
<PAGE>
<TABLE> 
<CAPTION> 


                                                         SYMMETRICOM, INC.
                                Unaudited Pro Forma Condensed Consolidated Statement of Operations
                                                Six Months Ended December 31, 1998
                                             (In thousands, except per share amounts)

                                               Historical         Less
                                              -----------     ----------------
                                                                 Linfinity
                                              Symmetricom,    Microelectronics        Other               Pro
                                                 Inc.             Inc. (a)           Adjustments         Forma
                                              -----------     ----------------      -------------       ----------
<S>                                            <C>               <C>               <C>                  <C>         
Net sales ..................................   $ 60,202          $ 22,013          $   --               $ 38,189    
Cost of sales ..............................     35,487            15,565              --                 19,922  
                                               --------          --------          --------             --------    
       Gross profit ........................     24,715             6,448              --                 18,267    
Operating expenses:                                                                                                 
  Research and development .................      9,281             2,620              --                  6,661    
  Selling, general and administrative ......     14,764             4,277               159 (b)           10,646    
                                               --------          --------          --------             --------    
       Operating income (loss) .............        670              (449)             (159)                 960    
Interest income ............................        948                54               --                   894
Interest expense ...........................       (360)              (86)              (86)(c)             (360)   
                                               --------          --------          --------             --------    
       Earnings (loss) before income taxes .      1,258              (481)             (245)               1,494    
Income tax provision (benefit) .............        264              (154)             (104)(d)              314    
                                               --------          --------          --------             --------    
       Net earnings (loss) .................   $    994          $   (327)         $   (141)            $  1,180    
                                               ========          ========          ========             ========
                                                                                                                    
Basic earnings (loss) per share ............   $   0.06          $  (0.02)         $  (0.01)            $   0.08    
                                               ========          ========          ========             ========    
Weighted average shares outstanding--basic .     15,604            15,604            15,604               15,604    
                                               ========          ========          ========             ========    
                                                                                                                    
Diluted earnings (loss) per share ..........   $   0.06          $  (0.02)         $  (0.01)            $   0.08    
                                               ========          ========          ========             ========    
Weighted average shares outstanding--diluted     15,630            15,630            15,630               15,630    
                                               ========          ========          ========             ========     
</TABLE> 

Notes to Unaudited Pro Forma Condensed Consolidated Statement of Operations
(a)    To remove revenues and expenses of Linfinity operations.
(b)    To record corporate administrative costs previously allocated to
       Linfinity.
(c)    To remove intercompany interest income.
(d)    The Linfinity operating results reflect a provision for income taxes as
       if Linfinity was a separate taxpayer. For pro forma purposes, tax expense
       was recalculated on a pro forma basis for the Registrant without
       Linfinity. This adjustment represents the tax difference arising from
       this with and without calculation.
<PAGE>
<TABLE> 
<CAPTION> 

                                                         SYMMETRICOM, INC.
                                Unaudited Pro Forma Condensed Consolidated Statement of Operations
                                                     Year Ended June 30, 1998
                                             (In thousands, except per share amounts)

                                                Historical      Less
                                               -----------   ------------
                                                               Linfinity
                                               Symmetricom,  Microelectronics        Other             Pro
                                                  Inc.          Inc. (a)          Adjustments         Forma     
                                               -----------   ------------         ------------     ----------- 
<S>                                            <C>              <C>                <C>              <C> 
Net sales ..................................   $ 120,581        $  47,270          $   --           $  73,311    
Cost of sales ..............................      76,306           39,288              --              37,018    
                                               ---------        ---------          --------         ---------    
       Gross profit ........................      44,275            7,982              --              36,293    
Operating expenses:                                                                                              
  Research and development .................      18,810            6,423              --              12,387    
  Selling, general and administrative ......      30,586           11,496               624 (b)        19,714    
                                               ---------        ---------          --------         ---------    
       Operating income (loss) .............      (5,121)          (9,937)             (624)            4,192    
Interest income ............................       1,819              106                --             1,713    
Interest expense ...........................        (838)            (230)             (122)(c)          (730)   
                                               ---------        ---------          --------         ---------    
       Earnings (loss) before income taxes .      (4,140)         (10,061)             (746)            5,175    
Income tax provision (benefit) .............      (2,610)          (3,219)              550 (d)         1,159    
                                               ---------        ---------          --------         ---------
       Net earnings (loss) .................   $  (1,530)       $  (6,842)         $ (1,296)        $   4,016    
                                               =========        =========          ========         =========    
                                                                                                                 
Basic earnings (loss) per share ............   $   (0.10)       $   (0.43)         $  (0.08)        $    0.25    
                                               =========        =========          ========         =========    
Weighted average shares outstanding--basic .      15,845           15,845            15,845            15,845    
                                               =========        =========          ========         =========    
                                                                                                                 
Diluted earnings (loss) per share ..........   $   (0.10)       $   (0.43)         $  (0.08)        $    0.25    
                                               =========        =========          ========         =========    
Weighted average shares outstanding--diluted      15,845           15,845            15,845            15,989(e)    
                                               =========        =========          ========         =========     
</TABLE> 

Notes to Unaudited Pro Forma Condensed Consolidated Statement of Operations
(a)    To remove revenues and expenses of Linfinity operations.
(b)    To record corporate administrative costs previously allocated to
       Linfinity.
(c)    To remove intercompany interest income.
(d)    The Linfinity operating results reflect a provision for income taxes as
       if Linfinity was a separate taxpayer. For pro forma purposes, tax expense
       was recalculated on a pro forma basis for the Registrant without
       Linfinity. This adjustment represents the tax difference arising from
       this with and without calculation.
(e)    Weighted average shares outstanding -- diluted increased due to the
       dilutive effect of potential common shares outstanding during the period.

<PAGE>
<TABLE> 
<CAPTION> 

                                                         SYMMETRICOM, INC.
                                     Unaudited Pro Forma Condensed Consolidated Balance Sheet
                                                         December 31, 1998
                                                          (In thousands)

                                                     Historical        
                                                    ------------       
                                                                          Linfinity
                                                    Symmetricom,       Microelectronics      Other            Pro
                                                        Inc.                Inc. (a)       Adjustments       Forma
                                                    ------------       -----------------  ------------     ---------
<S>                                                  <C>              <C>               <C>                 <C> 
ASSETS
Current assets:
Cash and cash equivalents ........................   $ 22,533          $   --            $ 19,900 (b)       $ 42,433      
Short-term investments ...........................     13,916              --                --               13,916
Accounts receivable, net .........................     16,164            (5,346)             --               10,818      
Inventories ......................................     15,157            (5,614)             --                9,543      
Other current assets .............................      8,790              (112)           (4,624)(d)          4,054      
                                                     --------          --------          --------           --------       
       Total current assets ......................     76,560           (11,072)           15,276             80,764   
                                                                                                                             
Property, plant and equipment, net ...............     36,287           (15,189)             --               21,098   
Other assets .....................................      1,133               (17)             --                1,116           
Net assets of Linfinity operations subject to sale        --             19,814           (19,814)(c)           --          
                                                     --------          --------          --------           --------       
       Total assets ..............................   $113,980          $ (6,464)         $ (4,538)          $102,978  
                                                     ========          ========          ========           ========       
                                                                                                                       
LIABILITIES AND SHAREHOLDERS' EQUITY                                                                                   
Current liabilities:                                                                                                   
Accounts payable .................................   $  5,479          $ (2,907)         $   --             $  2,572  
Accrued liabilities ..............................     16,200            (3,557)             --               12,643  
Current maturities of long-term obligations ......        553              --                --                  553    
                                                     --------          --------          --------           --------       
       Total current liabilities .................     22,232            (6,464)             --               15,768       
                                                                                                                            
Long-term obligations ............................      8,525              --                --                8,525 
Deferred income taxes ............................      1,954              --              (1,762)(d)            192       
                                                     --------          --------          --------           --------       
       Total liabilities .........................     32,711            (6,464)           (1,762)            24,485
                                                     --------          --------          --------           --------       

Shareholders' equity:   
Preferred stock         
Common stock .....................................     19,810              --                --               19,810 
Retained earnings ................................     61,459              --              (2,776)(e)         58,683       
                                                     --------          --------          --------           --------       
       Total shareholders' equity ................     81,269              --              (2,776)            78,493    
                                                     --------          --------          --------           --------       

                                                     --------          --------          --------           --------       
Total liabilities and shareholders' equity .......   $113,980          $ (6,464)         $ (4,538)          $102,978
                                                     ========          ========          ========           ========       
</TABLE> 

Notes to Unaudited Pro Forma Condensed Consolidated Balance Sheet
(a)    To remove assets and liabilities of the Linfinity operations which are
       subject to sale and reflect the net assets on the balance sheet as net
       assets of Linfinity operations.
(b)    To reflect cash proceeds from the sale of Linfinity, net of anticipated
       costs of $3.1 million.
(c)    To reflect net assets of Linfinity sold.
(d)    To establish a valuation allowance against net deferred tax assets in
       connection with the sale of Linfinity.
(e)    To adjust retained earnings to reflect the sale of Linfinity.

<PAGE>
 
                                                                    EXHIBIT 99.2
                                        
                             AGREEMENT AND PLAN

                                     OF

                               REORGANIZATION

                     ___________________________________

                                By and Among

                      LINFINITY MICROELECTRONICS INC.,

                             SYMMETRICOM, INC.,

                   MICRO-LINFINITY ACQUISITION CORPORATION

                                     and
                            MICROSEMI CORPORATION

                     ___________________________________

                              February 10, 1999
<PAGE>
 
                              TABLE OF CONTENTS

<TABLE> 
<CAPTION> 
                                                                                              Page
                                                                                              ----
<S>                                                                                           <C>
ARTICLE I THE MERGER  ........................................................................  1
 
     SECTION 1.01     The Merger..............................................................  1
     SECTION 1.02     Effective Time; Closing.................................................  1
     SECTION 1.03     Effects of the Merger; Subsequent Actions...............................  2
     SECTION 1.04     Certificate of Incorporation and By-Laws of the Surviving Corporation...  2
     SECTION 1.05     Directors...............................................................  2
     SECTION 1.06     Officers................................................................  2
     SECTION 1.07     Conversion of Shares....................................................  3
     SECTION 1.08     Conversion of Purchaser Sub Common Stock................................  3
     SECTION 1.09     Company Option Plan.....................................................  3
     SECTION 1.10     Cash and Inter-Company Loan.............................................  4
     SECTION 1.11     Assumption of Strategic Partner Bonus Plan..............................  4
     SECTION 1.12     The Company's Stockholders' Meeting.....................................  4
     SECTION 1.13     Proxy Statement for the Stockholders' Meeting...........................  5
 
ARTICLE II DISSENTING SHARES; PAYMENT FOR SHARES..............................................  5
 
     SECTION 2.01     Dissenting Shares.......................................................  5
     SECTION 2.02     Exchange of Certificates; Escrow........................................  5
 
ARTICLE III REPRESENTATIONS AND WARRANTIES OF SYMMETRICOM AND LINFINITY.......................  8
 
     SECTION 3.01     Organization and Qualification..........................................  8
     SECTION 3.02     Charter and By-laws.....................................................  8
     SECTION 3.03     Capitalization..........................................................  8
     SECTION 3.04     Authority Relative to this Agreement....................................  9
     SECTION 3.05     No Conflict; Required Filings and Consents.............................. 10
     SECTION 3.06     Linfinity Financial Statements.......................................... 10
     SECTION 3.07     No Undisclosed Liabilities.............................................. 11
     SECTION 3.08     No Changes.............................................................. 11
     SECTION 3.09     Contracts, Commitments and Proposals.................................... 13
     SECTION 3.10     Litigation.............................................................. 14
     SECTION 3.11     Employee Plans and Arrangements......................................... 14
     SECTION 3.12     Assets.................................................................. 18
</TABLE> 
                                      -i-
<PAGE>
 
                              TABLE OF CONTENTS
                                  (continued)

<TABLE> 
<CAPTION> 
                                                                                             Page
                                                                                             ----
<S>                                                                                          <C>
     SECTION 3.13     Intellectual Property.................................................. 18
     SECTION 3.14     Taxes.................................................................. 19
     SECTION 3.15     Environmental Laws and Regulations..................................... 20
     SECTION 3.16     Inventory.............................................................. 21
     SECTION 3.17     Receivables............................................................ 21
     SECTION 3.18     Bank Accounts.......................................................... 21
     SECTION 3.19     Real Property.......................................................... 22
     SECTION 3.20     Insurance.............................................................. 22
     SECTION 3.21     Insider Interests...................................................... 22
     SECTION 3.22     Permits................................................................ 23
     SECTION 3.23     Disclosure............................................................. 23
     SECTION 3.24     Board Recommendation................................................... 23
     SECTION 3.25     Brokers................................................................ 23
 
ARTICLE IV REPRESENTATIONS AND WARRANTIES OF SYMMETRICOM..................................... 23
 
     SECTION 4.01     Organization........................................................... 24
     SECTION 4.02     Title to Stock......................................................... 24
     SECTION 4.03     Authority Relative to this Agreement................................... 24
     SECTION 4.04     No Conflict; Required Filings and Consents............................. 24
 
ARTICLE V REPRESENTATIONS AND WARRANTIES OF PURCHASER AND PURCHASER SUB...................... 25
 
     SECTION 5.01     Organization and Qualification......................................... 25
     SECTION 5.02     Authority Relative to this Agreement................................... 26
     SECTION 5.03     No Conflict; Required Filings and Consents............................. 26
     SECTION 5.04     Financing.............................................................. 27
     SECTION 5.05     Brokers................................................................ 27
 
ARTICLE VI COVENANTS  ....................................................................... 27
 
     SECTION 6.01     Conduct of Business of the Company..................................... 27
     SECTION 6.02     Access to Information.................................................. 29
     SECTION 6.03     Reasonable Best Efforts................................................ 29
     SECTION 6.04     Consents............................................................... 30
     SECTION 6.05     Public Announcements................................................... 31
</TABLE> 
                                     -ii-
<PAGE>
 
                              TABLE OF CONTENTS
                                  (continued)

<TABLE> 
<CAPTION> 
                                                                                             Page
                                                                                             ----
<S>                                                                                          <C>
     SECTION 6.06     Notification of Certain Matters........................................ 31
     SECTION 6.07     Acquisition Proposals.................................................. 31
     SECTION 6.08     Additional SymmetriCom Obligations..................................... 32
     SECTION 6.09     Certain Tax Matters.................................................... 33
     SECTION 6.10     Linfinity Audited Financials........................................... 37
 
ARTICLE VII CONDITIONS TO THE MERGER......................................................... 37
 
     SECTION 7.01     Conditions to Obligations of Each Party to Effect the Merger........... 37
     SECTION 7.02     Additional Conditions to Obligations of Purchaser and Purchaser Sub.... 38
     SECTION 7.03     Additional Conditions to the Obligations of the Company and 
                      SymmetriCom............................................................ 39
 
ARTICLE VIII TERMINATION, AMENDMENT AND WAIVER............................................... 40
 
     SECTION 8.01     Termination............................................................ 40
     SECTION 8.02     Effect of Termination.................................................. 41
     SECTION 8.03     Amendment.............................................................. 41
     SECTION 8.04     Extension; Waiver...................................................... 41
     SECTION 8.05     Fees and Expenses; Termination Fee..................................... 41
 
ARTICLE IX INDEMNIFICATION................................................................... 42
 
     SECTION 9.01     Survival of Representations and Warranties............................. 42
     SECTION 9.02     SymmetriCom Indemnity.................................................. 42
     SECTION 9.03     Notification and Defense of Claims..................................... 44
     SECTION 9.04     Order of Payment; Exclusion and Limitation of Liability................ 46
     SECTION 9.05     General................................................................ 47
 
ARTICLE X MISCELLANEOUS...................................................................... 48
 
     SECTION 10.01    Entire Agreement; Assignment........................................... 48
     SECTION 10.02    Validity............................................................... 49
     SECTION 10.03    Notices................................................................ 49
     SECTION 10.04    Governing Law.......................................................... 50
     SECTION 10.05    Consent to Jurisdiction; Waiver of Immunities.......................... 50
     SECTION 10.06    Descriptive Headings................................................... 50
     SECTION 10.07    Counterparts........................................................... 50
</TABLE> 

                                     -iii-
<PAGE>
 
                              TABLE OF CONTENTS
                                  (continued)

<TABLE> 
<CAPTION> 
                                                                                             Page
                                                                                             ----
<S>                                                                                          <C>
     SECTION 10.08    Parties in Interest.................................................... 51
     SECTION 10.09    Certain Definitions.................................................... 51
     SECTION 10.10    Specific Performance................................................... 51
     SECTION 10.11    Arbitration............................................................ 51
</TABLE>

                                     -iv-
<PAGE>
 
                               LIST OF SCHEDULES


     Schedule 3.03      --   Capitalization
     Schedule 3.05      --   Conflicts
     Schedule 3.06      --   Linfinity Financials
     Schedule 3.08      --   Changes
     Schedule 3.09      --   Contracts, Commitments and Proposals
     Schedule 3.10      --   Litigation
     Schedule 3.11      --   Employee Plans and Arrangements
     Schedule 3.13      --   Intellectual Property
     Schedule 3.14      --   Tax
     Schedule 3.15      --   Environmental Laws and Regulations
     Schedule 3.17      --   Receivables
     Schedule 3.18      --   Bank Accounts
     Schedule 3.19      --   Real Property
     Schedule 3.20      --   Insurance
     Schedule 3.21      --   Insider Interests
     Schedule 3.22      --   Permits
     Schedule 5.01(e)   --   Employee Benefit Arrangements
<PAGE>
 
     LIST OF EXHIBITS
     ----------------

     Exhibit A    Escrow Agreement
     Exhibit B    Opinion of Wilson Sonsini Goodrich & Rosati
     Exhibit C    Phase II Environmental Workplan
     Exhibit D    Opinion of Purchaser's Counsel
<PAGE>
 
                     AGREEMENT AND PLAN OF REORGANIZATION
                     ------------------------------------

     This AGREEMENT AND PLAN OF REORGANIZATION (this "Agreement"), is made and
entered into as of February 10, 1999 by and among SymmetriCom, Inc., a
California corporation ("SymmetriCom"), Linfinity Microelectronics Inc., a
Delaware corporation ("Linfinity" or the "Company"), Microsemi Corporation
("Purchaser"), a Delaware corporation and Micro-Linfinity Acquisition
Corporation, a Delaware corporation and wholly owned subsidiary of Purchaser
("Purchaser Sub").

     WHEREAS, the respective Boards of Directors of SymmetriCom, Linfinity,
Purchaser and Purchaser Sub deem it advisable and in the best interests of each
company and their stockholders to enter into this Agreement and to consummate
the transactions contemplated hereunder;

     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein,
SymmetriCom, Linfinity, Purchaser and Purchaser Sub agree as follows:

                                   ARTICLE I

                                  THE MERGER

     SECTION 1.01      The Merger
     ----------------------------

     .  Upon the terms and subject to the satisfaction or waiver of the
conditions hereof, and in accordance with the applicable provisions of this
Agreement and the General Corporation Law of the State of Delaware (the "GCL"),
at the Effective Time, Purchaser Sub shall be merged with and into Linfinity
(the "Merger").  Following the Merger, the separate corporate existence of
Purchaser Sub shall cease and Linfinity shall continue as the surviving
corporation (the "Surviving Corporation").

     SECTION 1.02      Effective Time; Closing
     -----------------------------------------

     .  As soon as practicable after the satisfaction or waiver (to the extent
permitted hereunder) of the conditions set forth in Article VII, Linfinity shall
execute in the manner required by the GCL and deliver to the Secretary of State
of the State of Delaware a duly executed certificate of merger, and the parties
hereto shall take such other and further actions as may be required by law to
make the Merger effective. The time the Merger becomes effective in accordance
with applicable law is referred to as the "Effective Time." Prior to such filing
of the certificate of merger, a closing (the "Closing") shall be held at the
offices of Wilson Sonsini Goodrich & Rosati, 650 Page Mill Road, Palo Alto,
California 94301, or such other place as the parties hereto shall agree, for the
purpose of 

                                      -1-
<PAGE>
 
confirming the satisfaction or waiver of the conditions set forth in Article
VII. The date on which the Closing occurs is referred to herein as the "Closing
Date."

     SECTION 1.03      Effects of the Merger; Subsequent Actions
     -----------------------------------------------------------

     .  The Merger shall have the effects set forth in Section 259 of the GCL.
Without limiting the generality of the foregoing, and subject thereto, any other
applicable laws and as specifically provided in this Agreement, at the Effective
Time, all properties, rights, privileges, powers and franchises of Linfinity and
Purchaser Sub shall vest in the Surviving Corporation, and all debts,
liabilities, restrictions, disabilities and duties of Linfinity and Purchaser
Sub shall become debts, liabilities, restrictions, disabilities and duties of
the Surviving Corporation.

     SECTION 1.04      Certificate of Incorporation and By-Laws of the Surviving
     ---------------------------------------------------------------------------
Corporation
- -----------

             (a)  The Certificate of Incorporation of Purchaser Sub, as in
effect immediately prior to the Effective Time, shall be the Certificate of
Incorporation of the Surviving Corporation, until thereafter amended in
accordance with the provisions thereof and applicable law.

             (b)  The By-Laws of Purchaser Sub in effect at the Effective Time
shall be the By-Laws of the Surviving Corporation, until thereafter amended in
accordance with the provisions thereof and applicable law.

             (c)  The name of the Surviving Corporation shall be Linfinity
Microelectronics Inc., until thereafter amended in accordance with the
provisions of the Certificate of Incorporation, the By-laws of the Surviving
Corporation and applicable law.

     SECTION 1.05      Directors
     ---------------------------

     .  Subject to applicable law, the directors of Purchaser Sub immediately
prior to the Effective Time shall be the initial directors of the Surviving
Corporation and shall hold office until their respective successors are duly
elected and qualified, or their earlier death, resignation or removal.

     SECTION 1.06      Officers
     --------------------------

     .  The officers of Purchaser Sub immediately prior to the Effective Time
shall be the initial officers of the Surviving Corporation and shall hold office
until their respective successors are duly elected and qualified, or their
earlier death, resignation or removal.

                                      -2-
<PAGE>
 
     SECTION 1.07      Conversion of Shares
     --------------------------------------

     .  Subject to Section 2.01 below, at the Effective Time, by virtue of the
Merger and in accordance with the provisions of the Company's Certificate of
Incorporation and based on an aggregate purchase price payable for all the
capital stock of Linfinity in the Merger of $24,125,001 (the "Purchase Price"),
without any action on the part of SymmetriCom, Linfinity, Purchaser, Purchaser
Sub or the holders of the following securities, each share of Linfinity
Preferred Stock and each share of Linfinity Common Stock issued and outstanding
immediately prior to the Effective Time (together the "Shares") (other than
Dissenting Shares) shall be converted into the right to receive $2.964569 (the
"Preferred Price Per Share") and $1.464569 (the "Common Price Per Share")
(assuming and to be adjusted on the basis that there are 6,000,000 shares of
Preferred Stock outstanding, 4,197,824 shares of Common Stock outstanding,
121,449 options outstanding at an exercise price of $0.50 and 109,000 options
outstanding at an exercise price of $0.80), respectively, without interest
thereon, upon surrender of the certificate formerly representing such Share.
The Preferred Price Per Share and the Common Price Per Share will be adjusted as
provided in the Company's Certificate of Incorporation in the event of a change
in the number of outstanding shares of Preferred Stock or Common Stock from that
set forth in the preceding sentence.  The aggregate Preferred Price and the
aggregate Common Price will be rounded down to the nearest cent after
aggregating all Shares held by such stockholder.

     SECTION 1.08      Conversion of Purchaser Sub Common Stock
     ----------------------------------------------------------

     .  At the Effective Time, each share of Common Stock, par value $.001 per
share, of Purchaser Sub issued and outstanding immediately prior to the
Effective Time shall, by virtue of the Merger and without any action on the part
of the holder thereof, be converted into and become one validly issued, fully
paid and non-assessable share of Common Stock, par value $.01 per share, of the
Surviving Corporation.

     SECTION 1.09      Company Option Plan.
     ------------------------------------- 

                (a)  Linfinity shall (i) terminate its 1993 Stock Plan (the
"Option Plan") as of the Effective Time and (ii) grant no additional Options,
restricted stock, stock units, performance units, performance shares, fixed
awards or similar rights or awards under the Option Plan or otherwise on or
after the date hereof. As used hereafter in this Section 1.09, "Options" shall
include each stock option or other right to acquire Shares (whether or not then
exercisable, and regardless of the exercise price thereof) granted by Linfinity,
whether pursuant to the Option Plan or otherwise, to an employee, agent,
consultant, advisor or director of Linfinity.

                (b)  Linfinity shall cancel each Option as of the Effective Time
pursuant to the terms of the Option Plan and without limitation to the
foregoing, after having given at least fifteen (15) days notice to each holder
of Options of the material terms of this Agreement. In consideration for each
cancellation of an Option, the holder of such Option shall be entitled to be
paid out of the Purchase Price an amount equal to the product of (i) the excess
of the Common Price Per Share over

                                      -3-
<PAGE>
 
the per Share exercise price of such Option (the "Option Price Per Share"), and
(ii) the number of Shares subject to such Option and Linfinity will deliver to
the holder of such Options an "Option Cancellation Certificate." For the
avoidance of doubt, Options with an exercise price of $0.50 will be entitled to
$0.964569 and Options with an exercise price of $0.80 will be entitled to
$0.664569 The aggregate price to be paid to the holder of any Option will be
rounded down to the nearest cent after aggregating all Options for which payment
will be made as held by such Optionholder. No consideration will be paid to the
holder of an Option the per share exercise price of which exceeds the Common
Price Per Share. Except for Purchaser's payment of the Purchase Price as
expressly provided in Section 1.07, SymmetriCom shall indemnify and hold
harmless Purchaser and the Company from and against any cost or liability
arising in connection with Options.

     SECTION 1.10      Cash and Inter-Company Loan
     ---------------------------------------------

     .  Prior to the Effective Time, Linfinity shall pay payables and collect
receivables in the ordinary course, consistent with past practice, and neither
defer payables nor accelerate collections.  Immediately prior to the Effective
Time, Linfinity shall use all available cash to pay all of the outstanding
principal and accrued interest on that certain Inter-Company Revolving Loan
Agreement (the "Inter-Company Loan") by and among Linfinity and SymmetriCom as
Lender, dated August 15, 1998, and to the extent that there is insufficient cash
to pay such outstanding amount, such Inter-Company Loan shall be canceled.  To
the extent that there is surplus cash after payment of the Inter-Company Loan
prior to Closing, SymmetriCom shall be entitled to apply such excess cash for
purposes of covering the assumption by it of the Bonus Plan as set forth in
Section 1.11 hereof and for any other cash payments to be made to employees as a
result of the consummation of this Agreement.

     SECTION 1.11      Assumption of Strategic Partner Bonus Plan
     ------------------------------------------------------------

     .  Immediately prior to the Effective Time, SymmetriCom shall have legally
assumed by way of assignment or otherwise the entire rights and obligations of
Linfinity under that certain Strategic Partner Bonus Plan (the "Bonus Plan")
entered into among Linfinity and the beneficiaries thereunder in August 1998
relating to the payment of special bonuses in connection with the sale of
Linfinity, a copy of which has been provided to Purchaser.  SymmetriCom will
indemnify and hold the Purchaser and the Company harmless in respect of any
claim or liability arising in connection with the Bonus Plan.

     SECTION 1.12      The Company's Stockholders' Meeting
     -----------------------------------------------------

     .  The Company shall take all action in accordance with the federal and
state securities laws, the GCL, and the Company's Certificate of Incorporation
and By-laws necessary to convene a special meeting of the Company's
Stockholders' (the "Company's Stockholders' Meeting") to be held on the date
determined by the Company and acceptable to Purchaser, to consider and vote upon
approval of the Merger, this Agreement and the transactions contemplated hereby,
including the 

                                      -4-
<PAGE>
 
Company's Board of Director's Recommendation that the Company Stockholders'
approve the Merger.

     SECTION 1.13      Proxy Statement for the Stockholders' Meeting
     ---------------------------------------------------------------

     .  Consistent with the timing for the Company's Stockholders' Meeting as
determined by the Company, the Company shall use all reasonable efforts to mail
at the earliest practicable date to the Company Stockholders, a proxy statement
regarding the proposed Merger, which shall include all information required
under applicable law to be furnished to the Company's Stockholders in connection
with the Merger and the transactions contemplated thereby and hereby and shall
include the Company's Board of Director's Recommendation that the Company
Stockholders' approve the Merger.

                                  ARTICLE II

                     DISSENTING SHARES; PAYMENT FOR SHARES

     SECTION 2.01      Dissenting Shares
     -----------------------------------

                (a)  Notwithstanding anything in this Agreement to the contrary,
Shares outstanding immediately prior to the Effective Time and held by a holder
who has not voted in favor of the Merger or consented thereto in writing and who
has demanded appraisal for such Shares in accordance with Section 262 of the
GCL, if such Section 262 provides for appraisal rights for such Shares in the
Merger ("Dissenting Shares"), shall not be converted into the right to receive
the Preferred Price Per Share or Common Price Per Share, as the case may be, as
provided in Section 1.07, unless and until such holder fails to perfect or
withdraws or otherwise loses his right to appraisal and payment under the GCL.
If, after the Effective Time, any such holder fails to perfect or withdraws or
loses his right to appraisal, such Dissenting Shares shall thereupon be treated
as if they had been converted as of the Effective Time into the right to receive
the Preferred Price Per Share or the Common Price Per Share, as the case may be,
if any, to which such holder is entitled, without interest or dividends thereon.

                (b)  Each of Linfinity and Purchaser shall give the other prompt
notice of any demands received by Linfinity or Purchaser for appraisal of Shares
and of all negotiations and proceedings with respect to such demands. After the
Effective Time, neither Linfinity nor Purchaser shall, except with the prior
written consent of SymmetriCom, make any payment with respect to, or settle or
offer to settle, any such demands. SymmetriCom shall indemnify the Purchaser and
the Company from any costs and expenses of the Company incurred with respect to
appraisals or proceedings regarding Dissenting Shares and from any incremental
amount required to be paid to a shareholder over and above the amount such
shareholder is entitled to receive under this Agreement and the Merger.

     SECTION 2.02      Exchange of Certificates; Escrow
     --------------------------------------------------

                                      -5-
<PAGE>
 
               (a)  Prior to the Effective Time, Purchaser shall designate a
bank or trust company reasonably acceptable to Linfinity to act as paying agent
(the "Paying Agent") in effecting the exchange for the Preferred Price Per Share
of certificates (the "Preferred Certificates") that, prior to the Effective
Time, represented Preferred Stock, the Common Price Per Share of Certificates
(the "Common Certificates") that, prior to the Effective Time, represented
Common Stock, and the Option Price Per Share for Option Cancellation
Certificates. Upon the surrender of each Preferred Certificate formerly
representing Preferred Stock, together with a properly completed letter of
transmittal, the Paying Agent shall pay the holder of such Preferred Certificate
the Preferred Price Per Share multiplied by the number of shares of Preferred
Stock formerly represented by each such Preferred Certificate, in exchange
therefor, and each such Preferred Certificate shall forthwith be canceled. Until
so surrendered and exchanged, each such Preferred Certificate (other than
Preferred Certificates representing Dissenting Shares) shall represent solely
the right to receive the Preferred Price Per Share. No interest shall be paid or
accrue on the Preferred Price Per Share. If the Preferred Price Per Share (or
any portion thereof) is to be delivered to any person other than the person in
whose name the Preferred Certificate formerly representing shares of Preferred
Stock surrendered in exchange therefor is registered, it shall be a condition to
such exchange that the Preferred Certificate so surrendered shall be properly
endorsed or otherwise be in proper form for transfer and that the person
requesting such exchange shall pay to the Paying Agent any transfer or other
Taxes required by reason of the payment of the Preferred Price Per Share to a
person other than the registered holder of the Preferred Certificate
surrendered, or shall establish to the satisfaction of the Paying Agent that
such Tax has been paid or is not applicable. Upon the surrender of each Common
Certificate formerly representing shares of Common Stock, together with a
properly completed letter of transmittal, the Paying Agent shall pay the holder
of such Common Certificate the Common Price Per Share multiplied by the number
of shares of Common Stock formerly represented by each such Common Certificate,
in exchange therefor, and each such Common Certificate shall forthwith be
canceled. Until so surrendered and exchanged, each such Common Certificate
(other than Common Certificates representing Dissenting Shares) shall represent
solely the right to receive the Common Price Per Share. No interest shall be
paid or accrue on the Common Price Per Share. If the Common Price Per Share (or
any portion thereof) is to be delivered to any person other than the person in
whose name the Common Certificate formerly representing shares of Common Stock
surrendered in exchange therefor is registered, it shall be a condition to such
exchange that the Common Certificate so surrendered shall be properly endorsed
or otherwise be in proper form for transfer and that the person requesting such
exchange shall pay to the Paying Agent any transfer or other Taxes required by
reason of the payment of the Common Price Per Share to a person other than the
registered holder of the Common Certificate surrendered, or shall establish to
the satisfaction of the Paying Agent that such Tax has been paid or is not
applicable. Upon the surrender of each Option Cancellation Certificate, together
with a properly completed letter of transmittal, the Paying Agent shall pay the
holder of such Option Cancellation Certificate the Option Price Per Share
multiplied by the number of shares of Common Stock formerly represented by each
such Option Cancellation Certificate, in exchange therefor. Until so surrendered
and exchanged, each such Option Cancellation Certificate shall represent solely
the right to receive the Option Price Per Share. No interest shall be paid or
accrued on the Option Price Per Share. If the Option Price Per Share (or any
portion thereof) is to be 

                                      -6-
<PAGE>
 
delivered to any person other than the person in whose name the Option
Cancellation Certificate surrendered in exchange therefor is registered, it
shall be a condition to such exchange that the Option Cancellation Certificate
so surrendered shall be properly endorsed or otherwise be in proper form for
transfer and that the person requesting such exchange shall pay to the Paying
Agent any transfer or other Taxes required by reason of the payment of the
Option Price Per Share to a person other than the registered holder of the
Option Cancellation Certificate surrendered, or shall establish to the
satisfaction of the Paying Agent that such Tax has been paid or is not
applicable.
 
                (b)  Prior to the Effective Time, Purchaser or Purchaser Sub
shall deposit, or cause to be deposited, in trust with the Paying Agent an
amount equal to the Purchase Price to which holders of Shares shall be entitled
at the Effective Time pursuant to Section 1.07 hereof; provided, however, that
                                                       --------  -------      
no such deposit shall relieve Purchaser or Purchaser Sub of its obligation to
pay the Purchase Price pursuant to Section 1.07. Notwithstanding the foregoing,
$1,125,000 of the consideration otherwise payable to SymmetriCom under this
Section 2.02(b) shall not be paid in cash at the Closing, but instead shall be
held in escrow pursuant to the Escrow Agreement attached hereto as Exhibit A
                                                                   --------- 
(the "Escrow Agreement").

                (c)  The Purchase Price shall be invested by the Paying Agent as
directed by Purchaser, provided that such investments shall be limited to direct
obligations of the United States of America, obligations for which the full
faith and credit of the United States of America is pledged to provide for the
payment of principal and interest, commercial paper rated of the highest quality
by Moody's Investors Services, Inc. or Standard & Poor's Corporation, or
certificates of deposit issued by a commercial bank having at least
$1,000,000,000 in assets; provided further that no loss on investment made
pursuant to this Section 2.02(c) shall relieve Purchaser or Purchaser Sub of its
obligation to pay the Purchase Price pursuant to Section 1.07.

                (d)  Promptly after the Effective Time, the Paying Agent shall
mail: (i) to each record holder of Preferred Certificates that immediately prior
to the Effective Time represented Preferred Stock, a form of letter of
transmittal and instructions for use in surrendering such Preferred Certificates
and receiving the Preferred Price Per Share in exchange therefor and (ii) to
each record holder of Common Certificates that immediately prior to the
Effective Time represented Common Stock, a form of letter of transmittal and
instructions for use in surrendering such Common Certificates and receiving the
Common Price Per Share in exchange therefor.

                (e)  After the Effective Time, there shall be no transfers on
the stock transfer books of the Surviving Corporation of any Shares. If, after
the Effective Time, Common Certificates formerly representing Common Stock are
presented to the Surviving Corporation or the Paying Agent, they shall be
canceled and exchanged for the Common Price Per Share as provided in this
Article II, subject to applicable law in the case of Dissenting Shares.

                (f)  Promptly following the date which is six (6) months after
the Effective Time, the Paying Agent shall deliver to Purchaser all cash and
documents in its possession relating to the transactions described in this
Agreement, and the Paying Agent's duties shall terminate. Thereafter,

                                      -7-
<PAGE>
 
each holder of a Common Certificate formerly representing Common Stock may
surrender such Common Certificate to the Surviving Corporation and (subject to
applicable abandoned property, escheat and similar laws) receive in exchange
therefor the Common Price Per Share, without any interest thereon.

                                  ARTICLE III

          REPRESENTATIONS AND WARRANTIES OF SYMMETRICOM AND LINFINITY

     SymmetriCom and the Company each represents and warrants to Purchaser and
Purchaser Sub that subject to such exceptions as are specifically disclosed in
the disclosure schedules corresponding to the appropriate Section and paragraph
numbers herein supplied to Purchaser and Purchaser Sub (the "Linfinity
Disclosure Schedules"):

     SECTION 3.01      Organization and Qualification
     ------------------------------------------------

     .  The Company is a corporation duly organized, validly existing and in
good standing under the laws of the State of Delaware.  The Company has no
subsidiaries.  The Company has the requisite corporate power and authority to
own, operate or lease its properties and to carry on its business as it is now
being conducted, and is duly qualified or licensed to do business, and is in
good standing, in each jurisdiction in which the nature of its business or the
properties owned, operated or leased by it makes such qualification, licensing
or good standing necessary, except where the failure to have such power or
authority, or the failure to be so qualified, licensed or in good standing,
would not have a Material Adverse Effect on the Company.

     The term "Material Adverse Effect on the Company," as used in this
Agreement, means any adverse change, circumstance or effect that, individually
or in the aggregate with all other adverse changes, circumstances and effects,
has had or will have a material adverse effect on the business, financial
condition, properties or results of operations of the Company taken as a whole;
provided, however, that an effect of less than $100,000 shall be deemed not to
- --------  -------                                                             
be a Material Adverse Effect.
 
     SECTION 3.02      Charter and By-laws
     -------------------------------------

     .  The Company has heretofore made available to Purchaser a complete and
correct copy of its Certificate of Incorporation and the By-laws, each as
amended as of the date hereof.

     SECTION 3.03      Capitalization.
     -------------------------------- 

                (a)  The authorized capital stock of the Company consists of
30,000,000 Shares consisting of 20,000,000 shares of Common Stock, par value
$.01 per share, and 10,000,000 shares of Preferred Stock, par value $.01 per
share, of which 6,000,000 shares were designated Series A Preferred Stock. As of
the close of business on December 22, 1998, 10,197,824 Shares were issued and
outstanding, of which 6,000,000 Shares are Series A Preferred Stock and
4,197,824 shares are

                                      -8-
<PAGE>
 
Common Stock. SymmetriCom is the record and beneficial owner of 6,000,000 shares
of Series A Preferred and 4,000,000 shares of Common Stock of the Company. The
Company has no Shares reserved for issuance, except that, as of December 22,
1998, there were 2,303,000 Shares reserved for issuance pursuant to the Option
Plan of which 1,643,102 Shares represent outstanding Options or other awards
under the Option Plan and there were 6,000,000 shares of Common Stock, reserved
for issuance upon conversion of the Preferred Stock. The Company has no options
to purchase Shares outstanding other than Options which will be cancelled
pursuant to Section 1.09(b) hereof. Since September 30, 1998, the Company has
not issued any shares of capital stock except pursuant to the exercise of
Options outstanding as of such date. All of the outstanding Shares are, and all
Shares which may be issued pursuant to the exercise of outstanding Options will
be, when issued in accordance with the respective terms thereof, duly
authorized, validly issued, fully paid and nonassessable. There are no bonds,
debentures, notes or other indebtedness having general voting rights (or
convertible into securities having such rights) ("Voting Debt") of the Company
issued and outstanding. Except as set forth above and except for the
transactions contemplated by this Agreement, there are no existing options,
warrants, calls, subscriptions or other rights, convertible securities,
agreements, arrangements or commitments of any character, relating to the issued
or unissued capital stock of the Company, obligating the Company to issue,
transfer or sell or cause to be issued, transferred or sold any shares of
capital stock or Voting Debt of, or other equity interest in, the Company or
securities convertible into or exchangeable for such shares or equity interests,
and the Company is not obligated to grant, extend or enter into any such option,
warrant, call, subscription or other right, convertible security, agreement,
arrangement or commitment. Except as set forth in Section 1.09, there are no
outstanding contractual obligations of the Company to (i) repurchase, redeem or
otherwise acquire any Shares of the capital stock of the Company or (ii) provide
funds to or make any investment in (in the form of a loan, capital contribution
or otherwise) any entity.

                (b)  There are no voting trusts or other agreements or
understandings to which Linfinity is a party with respect to the voting of the
capital stock of the Company.

     SECTION 3.04      Authority Relative to this Agreement
     ------------------------------------------------------

     .  The Company has all necessary corporate power and authority to execute
and deliver this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement by the Company and the
consummation by the Company of the transactions contemplated hereby have been
duly and validly authorized and approved by the Board of Directors of the
Company and no other corporate proceedings on the part of the Company are
necessary to authorize or approve this Agreement, or to consummate the
transactions contemplated hereby (other than, with respect to the approval and
adoption of the Merger and this Agreement by the affirmative vote of the holders
of a majority of the Shares then outstanding and the approval of the holders of
a majority of the Series A Preferred Stock, voting as a separate class). This
Agreement has been duly and validly executed and delivered by the Company and,
assuming the due and valid authorization, execution and delivery of this
Agreement by Purchaser and Purchaser Sub, constitutes a valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms, 

                                      -9-
<PAGE>
 
except that such enforceability (i) may be limited by bankruptcy, insolvency,
moratorium or other similar laws affecting or relating to the enforcement of
creditors' rights generally and (ii) is subject to general principles of equity.

     SECTION 3.05      No Conflict; Required Filings and Consents.
     ------------------------------------------------------------ 
 
                (a)  Except as set forth on Schedule 3.05 hereto, none of the 
                                            ------------- 
execution, delivery or performance of this Agreement by the Company, the
consummation by the Company of the transactions contemplated hereby or the
compliance by the Company with any of the provisions hereof will (i) conflict
with or violate the Certificate of Incorporation or By-Laws of the Company, (ii)
conflict with or violate any statute, ordinance, rule, regulation, order,
judgment or decree applicable to the Company, or by which its properties or
assets may be bound or affected, or (iii) result in a violation or breach of or
constitute a default (or an event which with notice or lapse of time or both
would become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, or result in any loss of any
material benefit, or the creation of any lien on any of the property or assets
of the Company (any of the foregoing referred to in clause (ii) or this clause
(iii) being a "Violation") pursuant to, any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which the Company is a party or by which the Company or any of its
properties may be bound or affected.

                (b)  None of the execution, delivery or performance of this
Agreement by the Company, the consummation by the Company of the transactions
contemplated hereby or the compliance by the Company with any of the provisions
hereof will require any consent, waiver, approval, authorization or permit of,
or registration or filing with or notification to (any of the foregoing being a
"Consent"), any government or subdivision thereof, domestic, foreign or
supranational or any administrative, governmental or regulatory authority,
agency, commission, tribunal or body, domestic, foreign or supranational (a
"Governmental Entity"), except for (i) the filing of a certificate of merger
pursuant to the GCL, (ii) notifications required by certain environmental
statutes, and (iii) compliance with the Hart-Scott-Rodino Antitrust Improvements
Act of 1976, as amended (the "HSR Act").

                (c)  The Company is not subject to, or a party to, any charter,
bylaw, mortgage, lien, lease, license, permit, instrument, order, judgment or
decree, or any other agreement, contract or restriction of any kind or character
which would prevent consummation of the transactions contemplated by this
Agreement, compliance by the Company with the terms, conditions and provisions
hereof or the continued operation of the business of the Company after the date
hereof or as of the Closing Date on substantially the same basis as heretofore
operated or which would restrict the ability of the Company to acquire any
property or conduct business of the nature currently conducted by the Company.

     SECTION 3.06      Linfinity Financial Statements
     ------------------------------------------------

                                      -10-
<PAGE>
 
     .  Schedule 3.06 sets forth the Company's unaudited balance sheet as of
        -------------                                                       
June 30, 1998 and the Company's' unaudited balance sheet as of September 30,
1998 and the related unaudited statements of income and cash flow for the three
(3) months then ended (the "Financials").  The Financials have been prepared in
accordance with generally accepted accounting principles ("GAAP") applied on a
basis consistent throughout the periods indicated and consistent with each other
(except that they do not contain all the notes that may be required by GAAP).
The Financials present fairly the financial condition, operating results and
cash flows of the Company as of the dates and for the periods indicated therein,
subject to normal year-end adjustments, which on the basis of information
available or which should be available to the Company as of the date hereof will
not be material in amount or significance.  The Company's' unaudited Balance
Sheet as of September 30, 1998 is sometimes referred to herein as the "Current
Balance Sheet".

     SECTION 3.07      No Undisclosed Liabilities
     --------------------------------------------

     .  The Company does not have any liability, indebtedness, obligation,
expense, claim, deficiency, guaranty or endorsement of any type (whether
accrued, absolute, contingent, matured, unmatured or other) required to be
reflected in financial statements in accordance with GAAP, which individually or
in the aggregate, (i) has not been reflected in the Current Balance Sheet, or
(ii) has not arisen in the ordinary course of the Company's' business consistent
with past practices since the date of the Current Balance Sheet.

     SECTION 3.08      No Changes
     ----------------------------

     .  Except as set forth on Schedule 3.08, since September 30, 1998, there
                               -------------                                 
has not been, occurred or arisen any:

                (a)  transaction by the Company except in the ordinary course of
business as conducted on that date and consistent with past practices;

                (b)  amendments or changes to the Certificate of Incorporation
or By-laws of the Company;

                (c)  capital expenditure or commitment by the Company, either
individually or in the aggregate, exceeding $50,000;

                (d)  loss of or any material destruction of or damage to any
material assets, business or customer of the Company (whether or not covered by
insurance) either individually or in the aggregate in excess of $50,000;

                (e)  labor trouble or claim of wrongful discharge or other
unlawful labor practice or action;

                (f)  material change in accounting methods or practices
(including any change in depreciation or amortization policies or rates) by the
Company;

                                      -11-
<PAGE>
 
                (g)  revaluation by the Company of any of its assets;

                (h)  declaration, setting aside or payment of a dividend or
other distribution with respect to any Shares, or any direct or indirect
redemption, purchase or other acquisition by the Company of any Shares other
than repurchases of stock from former employees, directors and consultants at
cost in connection with any termination of service to the Company;

                (i)  material increase in the salary or other compensation
payable or to become payable by the Company to any of its officers, directors,
employees or advisors, or the declaration, payment or commitment or obligation
of any kind for the payment by the Company of a bonus or other additional salary
or compensation to any such person;

                (j)  termination, extension, amendment or modification to the
terms of any material agreement, contract, covenant, instrument, lease, license
or commitment to which the Company is a party or by which it or any of its
assets is bound, other than licenses of products in the ordinary course of
business;

                (k)  sale, lease, license or other disposition of any of the
material assets or properties of the Company, or the creation of any security
interest in such assets or properties other than licenses of products in the
ordinary course of business;

                (l)  loan by the Company to any person or entity, incurring by
the Company of any indebtedness for borrowed money, guaranteeing by the Company
of any indebtedness for borrowed money, issuance or sale of any debt securities
of the Company or guaranteeing of any debt securities of others, except for
advances to employees for travel and business expenses in the ordinary course of
business and not exceeding $50,000 in the aggregate, consistent with past
practices and drawdowns by the Company from SymmetriCom pursuant to the Inter-
Company Loan;

                (m)  waiver or release of any right or claim of the Company,
including any write-off or other compromise of any account receivable of the
Company in excess of $50,000 in the aggregate;

                (n)  commencement or notice or threat or reasonable basis
therefor of any lawsuit or proceeding against or investigation of the Company or
its affairs;

                (o)  notice, oral or written, of any claim or potential claim of
ownership by a third party of the Company Intellectual Property (as defined in
Section 3.13 below) or, to the knowledge of the Company, infringement by the
Company of any third party's Intellectual Property rights;

                (p)  issuance or sale, or contract to issue or sell, by the
Company of any Company Shares, or securities exchangeable, convertible or
exercisable therefor, or any securities, warrants, options or rights to purchase
any of the foregoing; except for issuance of Shares of the Company in accordance
with Options granted under the Option Plan;

                                      -12-
<PAGE>
 
                (q)  material change in pricing or royalties set or charged by
the Company to its customers or licensees or in pricing or royalties set or
charged by persons who have licensed Intellectual Property to the Company;

                (r)  event or condition of any character that has or would
reasonably be expected to have a Material Adverse Effect on the Company;

                (s)  negotiation or agreement by the Company or any officer or
employee thereof to do any of the things described in the preceding clauses (a)
through (r) (other than negotiations with Purchaser and its representatives
regarding the transactions contemplated by this Agreement).

     SECTION 3.09      Contracts, Commitments and Proposals
     ------------------------------------------------------

                (a)  Except as listed in Schedule 3.09 the Company is not bound
                                         -------------      
by any of the following:

                       (i)  any contract or commitment which requires payment or
services in excess of $100,000 or which requires payment or services in excess
of $10,000 and has an unexpired term in excess of one (1) year;

                       (ii) any agreement, contract or instrument that grants a
power of attorney, agency or similar authority to another Person or entity;

                       (iii)  any agreement, contract or commitment to loan or
advance to, invest in, or guaranty any indebtedness or obligation of, any
individual, partnership, joint venture, corporation, trust, unincorporated
organization or other entity, where the principal amount thereof is more than
$100,000 in the ordinary course of the Company's business, or, if such
agreement, contract, commitment or guarantee is not in the ordinary course of
business of the Company, any amount whatsoever.

                       (iv) any agreement, contract or commitment relating to
the employment of any Person by the Company or any Subsidiary not terminable at
will by the employer, or any bonus, deferred compensation, pension, severance,
profit sharing, stock option, employee stock purchase, retirement or other
employee benefit plan;

                       (v)  any consulting or similar type of contract which is
not, without any payment required thereunder (beyond those due for work
performed or materials delivered thereunder), terminable upon ninety (90) days'
notice (or less);

                       (vi) any confidentiality, non-disclosure or similar
agreement;

                       (vii)  any agreement, contract or commitment which has
had, or would reasonably be expected to have, an adverse impact on the business
or operations of the Company, in excess of $100,000;

                                      -13-
<PAGE>
 
                       (viii)  any agreement, contract or commitment limiting
the freedom of the Company from engaging in its present business;

                       (ix) any contract or agreement that contains a right of
first refusal with respect to any material asset of the Company; and

                       (x)  any unexpired written bid or proposal to enter into
any of the agreements identified above that is of a nature that it could, as
presented, be accepted by a third party and be thereby binding upon the Company.

                (b)  Each contract, agreement and commitment listed in Schedule
                                                                       -------- 
3.09 is valid and in full force and effect and there exists no (A) material
- ----
default or event of default or (B) event, occurrence, condition or act which,
with the giving of notice or the lapse of time, would become a material default
or event of material default thereunder. The Company has fully performed all of
the terms or conditions of any contract or agreement set forth in Schedule 3.09
                                                                  -------------
(or required to be set forth in such Schedule) in all material respects which is
required to be performed on or prior to the date hereof and all of the covenants
required to be performed by any other party thereto on or prior to the date
hereof have been performed in all material respects. A copy of each contract,
agreement or commitment listed in Schedule 3.09 has heretofore been made
                                  -------------
available or delivered to, Purchaser and such copy is true, correct and
complete.

     SECTION 3.10      Litigation
     ----------------------------

     .  Except as set forth in Schedule 3.10, as of the date hereof, there are
no suits, claims, actions, proceedings, including, without limitation,
arbitration proceedings or alternative dispute resolution proceedings, or
investigations ("Litigation") pending or, to the knowledge of the Company,
threatened against the Company before any Governmental Entity that would be
reasonably likely to have a Material Adverse Effect on the Company, nor is
there, to the knowledge of the Company any basis for such proceedings or
investigations, and, to the knowledge of the Company, there is no written
judgment, decree, injunction, award or order outstanding, against or affecting
the Company, the business of the Company, any of the Company's assets or the
Company Shares, or any transaction contemplated by this Agreement; and the
Company has not received any notice from any Governmental Entity claiming any
violation of any law, and the Company has not been during the past five years
nor is the Company currently in violation of any law which violation would have
a Material Adverse Effect on the Company and, to the knowledge of the Company,
no event has occurred or condition or state of facts exists that would give rise
to any such violation.  The Company does not have Litigation pending against any
third party, except as listed on Schedule 3.10.

     SECTION 3.11      Employee Plans and Arrangements
     -------------------------------------------------

                                      -14-
<PAGE>
 
                (a)  Definitions.  With the exception of the definition of
                ----------------   
"Affiliate" set forth in Section 3.11(a)(i) below (which definition shall apply
only to this Section 3.11), for purposes of this Agreement, the following terms
shall have the meanings set forth below:

                       (i)  "Affiliate" shall mean any other person or entity
                             ---------           
under common control with the Company within the meaning of Section 414(b), (c),
(m) or (o) of the Code and the regulations issued thereunder;

                       (ii) "Code"  shall mean the Internal Revenue Code of 
                             ----   
1986, as amended;

                       (iii) "Company Employee Plan" or Linfinity Employee 
                              --------------------------------------------
Plan" shall mean any plan, program, policy, practice, contract, agreement or
- ----
other arrangement providing for compensation, severance, termination pay,
deferred compensation, performance awards, stock or stock-related awards, fringe
benefits or other employee benefits or remuneration of any kind, whether written
or unwritten or otherwise, funded or unfunded, including without limitation,
each "employee benefit plan," within the meaning of Section 3(3) of ERISA which
is or has been maintained, contributed to, or required to be contributed to, by
the Company or any Affiliate for the benefit of any Employee, or with respect to
which the Company or any Affiliate has or may have any liability or obligation;

                       (iv) "COBRA" shall mean the Consolidated Omnibus Budget
                             -----
Reconciliation Act of 1985, as amended;

                       (v)  "DOL" shall mean the Department of Labor;
                             ---        
 
                       (vi) "Employee" shall mean any current or former
                             --------
employee, consultant or director of the Company or any Affiliate;

                       (vii)  "Employee Agreement" shall mean each management,
                               ------------------  
employment, severance, consulting, relocation, repatriation, expatriation,
visas, work permit or other agreement, contract or understanding between the
Company or any Affiliate and any Employee;

                       (viii)  "Employee Welfare Benefit Plan" shall mean any 
                                -----------------------------  
plan, program, policy, practice, contract, agreement or other arrangement that
is defined in Section 3(1) of ERISA which is or is deemed to be maintained,
contributed to, or required to be contributed to by the Company or any Affiliate
for the benefit of any Employee immediately prior to the Effective Time; 

                       (ix) "ERISA" shall mean the Employee Retirement Income
                             -----
Security Act of 1974, as amended;

                       (x)  "FMLA" shall mean the Family Medical Leave Act of 
                             ----             
1993, as amended;

                       (xi) "IRS" shall mean the Internal Revenue Service;
                             ---                                          

                                      -15-
<PAGE>
 
                       (xii)  "Multiemployer Plan" shall mean any "Pension 
                               ------------------  
Plan" (as defined below) which is a "multiemployer plan," as defined in Section
3(37) of ERISA;

                       (xiii)  "PBGC" shall mean the Pension Benefit Guaranty 
                                ----  
Corporation; and

                       (xiv)  "Pension Plan" shall mean each Linfinity Employee 
                               ------------  
Plan which is an "employee pension benefit plan," within the meaning of Section
3(2) of ERISA.

                (b)  Schedule.  Schedule 3.11(b) contains an accurate and 
                -------------   ---------------- 
complete list of each Linfinity Employee Plan and each Employee Agreement under
each Linfinity Employee Plan or Employee Agreement.

                (c)  Documents.  The Company has made available to Purchaser: 
                --------------   
(i) correct and complete copies of all documents embodying each Linfinity
Employee Plan and each Employee Agreement including (without limitation) all
amendments thereto and all related trust documents; (ii) the three (3) most
recent annual reports (Form Series 5500 and all schedules and financial
statements attached thereto), if any, required under ERISA or the Code in
connection with each Linfinity Employee Plan; (iii) the most recent summary plan
description together with the summary(ies) of material modifications thereto, if
any, required under ERISA with respect to each Linfinity Employee Plan; (iv) the
most recent IRS determination letter, if applicable; (v) all material
correspondence to or from any governmental agency relating to any Linfinity
Employee Plan; and (vi) all COBRA forms and related notices.

                (d)  Employee Plan Compliance.  (i) The Company has performed 
                -----------------------------       
in all material respects all obligations required to be performed by it under,
is not in default or violation of, and has no knowledge of any default or
violation by any other party to each Linfinity Employee Plan, and each Linfinity
Employee Plan has been established and maintained in all material respects in
accordance with its terms and in compliance with all applicable laws, statutes,
orders, rules and regulations, including but not limited to ERISA or the Code
and the Company has not, and to SymmetriCom's and the Company's knowledge each
other fiduciary has not, breached its fiduciary duty with respect to any
Linfinity Employee Plan; (ii) each Linfinity Employee Plan intended to qualify
under Section 401(a) of the Code and each trust intended to qualify under
Section 501(a) of the Code has either received a favorable determination,
opinion, notification or advisory letter from the IRS with respect to each such
Plan as to its qualified status under the Code, including all amendments to the
Code effected by the Tax Reform Act of 1986 and subsequent legislation, or has
remaining a period of time under applicable Treasury regulations or IRS
pronouncements in which to apply for such a letter and make any amendments
necessary to obtain a favorable determination as to the qualified status of each
such Linfinity Employee Plan and neither the Company nor SymmetriCom are aware
of any facts that would materially adversely affect the continuing applicability
of such favorable determinations; (iii) no "prohibited transaction," within the
meaning of Section 4975 of the Code or Sections 406 and 407 of ERISA, and not
otherwise exempt under Section 408 of ERISA, has occurred with respect to any
Company Employee Plan; (iv) there are no

                                      -16-
<PAGE>
 
actions, suits or claims pending, or, to the knowledge of the Company,
threatened or reasonably anticipated (other than routine claims for benefits)
against any Linfinity Employee Plan or against the assets of any Linfinity
Employee Plan; (v) there are no audits, inquiries or proceedings by the IRS or
DOL with respect to any Linfinity Employee Plan; and (vi) neither Linfinity nor
any Affiliate is subject to any penalty or tax with respect to any Linfinity
Employee Plan under Section 502(i) of ERISA or Sections 4975 through 4980 of the
Code.

                (e)  Pension Plan.  Neither the Company nor any Affiliate has 
                -----------------   
ever maintained, established, sponsored, participated in, or contributed to, any
Pension Plan which is subject to Title IV of ERISA or Section 412 of the Code.

                (f)  Multiemployer Plans.  At no time has the Company or any 
                ------------------------      
Affiliate contributed to or been obligated to contribute to any Multiemployer
Plan.

                (g)  No Post-Employment Obligations.  No Linfinity Employee 
                -----------------------------------   
Plan provides, or reflects or represents any liability to provide, retiree
health benefits to any person for any reason, except as may be required by COBRA
or other applicable statute, or benefits arising in connection with a separation
or severance program, plan or arrangement or benefits for which the participant
pays the full cost.

                (h)  COBRA.  Neither the Company nor any Affiliate has, prior 
                ----------           
to the Effective Time and in any material respect, violated any of the health
care continuation requirements of COBRA, the requirements of FMLA or any similar
provisions of state law applicable to its Employees.

                (i)  Effect of Transaction.
                -------------------------- 

                       (i)  Except as set forth on Schedule 3.11(i), the 
                            ----------------                                 
execution of this Agreement and the consummation of the transactions
contemplated hereby will not (either alone or upon the occurrence of any
additional or subsequent events) constitute an event under any Linfinity
Employee Plan, Employee Agreement, trust or loan that will or may result in any
payment (whether of severance pay or otherwise), acceleration, forgiveness of
indebtedness, vesting, distribution, increase in benefits or obligation to fund
benefits with respect to any Employee.

                       (ii)  Except as set forth on Schedule 3.11(i), no payment
or benefit which will or may be made by the Company or its Affiliates with
respect to any Employee as a result of the transactions contemplated by this
Agreement or otherwise will be characterized as a "parachute payment," within
the meaning of Section 280G(b)(2) of the Code.

                (j)  Employment Matters.  The Company: (i) is in compliance in 
                -----------------------        
all respects with all applicable foreign, federal, state and local laws, rules
and regulations respecting employment, employment practices, terms and
conditions of employment and wages and hours, in each case, with respect to
Employees; (ii) has withheld and reported all amounts required by law or by
agreement to be withheld and reported with respect to wages, salaries and other
payments to Employees; (iii) is not liable for any arrears of wages or any taxes
or any penalty for failure to comply with any of the

                                      -17-
<PAGE>
 
foregoing; and (iv) is not liable for any payment to any trust or other fund
governed by or maintained by or on behalf of any governmental authority, with
respect to unemployment compensation benefits, social security or other benefits
or obligations for Employees (other than routine payments to be made in the
normal course of business and consistent with past practice). There are no
pending, threatened or reasonably anticipated claims or actions against the
Company under any worker's compensation policy or long-term disability policy.
 
                (k)  Labor.  To the best of the Company's knowledge, no work 
                ----------   
stoppage or labor strike against the Company is pending, threatened or
reasonably anticipated. The Company does not know of any activities or
proceedings of any labor union to organize any Employees. There are no actions,
suits, claims, labor disputes or grievances pending, or, to the knowledge of the
Company, threatened or reasonably anticipated relating to any labor, safety or
discrimination matters involving any Employee, including, without limitation,
charges of unfair labor practices or discrimination complaints, which, if
adversely determined, would, individually or in the aggregate, result in any
material liability to the Company. Neither the Company nor any of its
subsidiaries has engaged in any unfair labor practices within the meaning of the
National Labor Relations Act. The Company is not presently, nor has it been in
the past, a party to, or bound by, any collective bargaining agreement or union
contract with respect to Employees and no collective bargaining agreement is
being negotiated by the Company.

                (l)  Plan Termination.  No Linfinity Employee Plan precludes 
                ---------------------   
the Company from prospectively amending or terminating such Linfinity Employee
Plan.

     SECTION 3.12      Assets
     ------------------------

     .  The Company has (a) good and marketable title to or a valid leasehold
interest under a capitalized lease in all assets recorded on the Company's
balance sheet as of September 30, 1998 included in the Company Financial
Statements referred to in Section 3.06 except for assets disposed of in the
ordinary course of business since such date, and (b) a valid leasehold or other
interest in all other assets used by it in its business, except in each case for
exceptions to the foregoing that would not have a Material Adverse Effect on the
Company.

     SECTION 3.13      Intellectual Property
     ---------------------------------------

     .

                (a)  Schedule 3.13 lists all of the United States (a) patent 
                ------------------ 
and patent applications; (b) registered trademarks and trademark applications;
(c) registered copyrights and applications for copyright registration; (d) mask
work registrations and applications to register mask works; and (e) other
registered Intellectual Property owned by the Company.

                (b) Except for any exceptions to the following that would not
have a Material Adverse Effect on the Company, to the Company's knowledge (but
without conducting an investigation), the Company owns or has the right to use
all Intellectual Property reasonably

                                      -18-
<PAGE>
 
necessary for the Company to conduct its business as it is currently conducted
and consistent with past practice.

                (c)  Except for any exceptions to the following that would not
have a Material Adverse Effect on the Company and except as set forth in
Schedule 3.13: (i) to the Company's knowledge (but without conducting an
- -------------
investigation), the Intellectual Property owned by the Company is free of all
Liens and security interests; (ii) the Intellectual Property owned by the
Company does not infringe upon the Intellectual Property rights of any third
party; (iii) none of the Intellectual Property owned by the Company is the
subject of any material license or other material agreement granting rights
therein to any third party (except for contracts relating to manufacturing
information and confidential information licensed to foundries, distributors,
OEMs and third parties in the ordinary course of the Company's business); (iv)
no judgment, decree, injunction, rule or order has been rendered by any
Governmental Entity which would limit, cancel or question the validity of, or
the Company's rights in and to, any Intellectual Property owned by the Company;
(v) the Company has not received notice of any pending or threatened suit,
action or proceeding that seeks to limit, cancel or question the validity of, or
the Company's rights in and to, any Intellectual Property owned or used by the
Company; (vi) no person is infringing or misappropriating any Intellectual
Property owned or used by the Company; and (vii) the Company takes reasonable
steps to protect, maintain and safeguard the Intellectual Property owned by the
Company, including any Intellectual Property for which improper or unauthorized
disclosure would impair its value or validity, and have caused its employees to
execute agreements in connection with the foregoing.

                (d)  For purposes of this Agreement "Intellectual Property"
shall mean all rights, privileges and priorities provided under U.S., state and
foreign law relating to intellectual property, including without limitation all
(i)(A) inventions, discoveries, processes, formulae, designs, methods,
techniques, procedures, concepts, developments, technology, new and useful
improvements thereof and know-how relating thereto, whether or not patented or
eligible for patent protections; (B) copyrights and copyrightable works,
including computer applications, programs, software, databases and related
items; (C) trademarks, service marks, and trade names, the goodwill of any
business symbolized thereby, and all common-law rights relating thereto; and (D)
trade secrets and other confidential information; and (ii) all registrations,
applications, recordings, and licenses or other similar agreements related to
the foregoing.

     SECTION 3.14      Taxes
     -----------------------

     .

                (a)  The Company has (i) filed all Tax Returns which it is
required to file under applicable laws and regulations either separately or as a
member of a group of corporations pursuant to the Code, (ii) paid all Taxes
which have become due and payable, and (iii) accrued as a liability on the
balance sheet included in the Company's Financial Statements described in
Section 3.06 all Taxes which were accrued but not yet due and payable as of the
date thereof. For purposes of this Agreement, "Tax" or "Taxes" shall mean any
federal, state, local or foreign income, gross receipts,

                                      -19-
<PAGE>
 
franchise, estimated, alternative minimum, add-on minimum, sales, use, transfer,
registration, value added, excise, natural resources, severance, stamp,
occupation, premium, windfall profit, environmental, customs, duties, real
property, personal property, capital stock, social security, unemployment,
disability, payroll, license, employee or other withholding, or other tax of any
kind, including any interest or penalties in respect of the foregoing. "Income
Taxes" shall mean any federal, state, local or foreign income, gross receipts,
franchise, estimated or alternative minimum tax of any kind, including any
interest or penalties in respect of the foregoing. "Tax Returns" means returns,
declarations, reports, information returns, or other documents filed or required
to be filed in connection with the determination, assessment or collection of
Taxes of any person or the administration of any laws, regulations or
administrative requirements relating to any Taxes.

                (b)  Except as disclosed in Schedule 3.14, none of the United
States federal and state income Tax Returns of the Company have been audited by
the IRS or relevant state tax authorities. SymmetriCom has provided or made
available all reasonably requested information regarding any such Tax audits to
the Purchaser and its accountants. Except as disclosed in Schedule 3.14, neither
SymmetriCom nor the Company has been requested to give waivers or extensions (or
is or would be subject to a waiver or extension given by any other Person) of
any statute of limitations relating to the payment of Taxes of the Company or
for which the Company may be liable.

                (c)  There is no contract, agreement, plan or arrangement to
which the Company is a party, including but not limited to the provisions of
this Agreement, covering any employee or former employee of the Company that,
individually or collectively, could give rise to the payment of any amount
following the Closing that would not be deductible pursuant to Section 280G, 404
or 162(m) of the Code.

                (d)  The Company is, and will be at the Closing Date, a "Section
338(h)(10) target" and a member of the consolidated group of which SymmetriCom
is the common parent within the meaning of Code Section 338(h)(10) and Treasury
Regulation Section 1.338(h)(10)-1(c)(1) and (3), and the Company and SymmetriCom
are eligible to make a Section 338(h)(10) election as contemplated by Section
6.09 of this Agreement.

     SECTION 3.15      Environmental Laws and Regulations
     ----------------------------------------------------

     .  Except as disclosed in Schedule 3.15:
                               ------------- 

                (a)  The Company (i) is and has been in compliance with
applicable Environmental Laws; (ii) has not received any notice of any alleged
claim, violation of or liability under any Environmental Law which has not
heretofore been cured or for which there is any remaining liability; (iii) has
not received notice of any Environmental Claim (as hereinafter defined) filed or
threatened against it, or against any Person whose liability for any
Environmental Claim the Company has retained or assumed either contractually or
by operation of law; (iv) has not disposed of, emitted, discharged, handled,
stored, transported, used or released any Hazardous Materials, arranged for the
disposal, discharge, storage or release of any Hazardous Materials, or exposed
any

                                      -20-
<PAGE>
 
employee or other individual to any Hazardous Materials so as to give rise to
any liability or corrective or remedial obligation under any Environmental Laws;
and (v) is not aware of the presence of Hazardous Materials in, on, or under any
properties owned, leased or used at any time by the Company such as would give
rise to any liability or corrective or remedial obligation under any
Environmental Laws.

                (b)  "Environmental Claim" means any notice, claim, act, cause
of action or investigation by any person or entity alleging potential liability
(including potential liability for investigatory costs, cleanup costs,
governmental response costs, natural resources damages, property damages,
personal injuries or penalties) arising out of, based on or resulting from (A)
the presence, or release into the environment, of any Hazardous Materials (as
hereinafter defined) or (B) any violation, or alleged violation, of any
Environmental Laws. "Environmental Laws" means all federal, state, local and
foreign laws and regulations relating to pollution or protection of the
environment or the protection of human health, including laws and regulations
relating to emissions, discharges, releases or threatened releases of Hazardous
Materials, or otherwise relating to the manufacture, processing, registration,
distribution, use, treatment, storage, disposal, transport or handling of
Hazardous Materials. "Hazardous Materials" means chemicals, pollutants,
contaminants, wastes, toxic substances, radioactive and biological materials,
asbestos-containing materials (ACM), hazardous substances, petroleum and
petroleum products or any fraction thereof.

     SECTION 3.16      Inventory
     ---------------------------
 
     .  All of the finished goods inventory of the Company is in good,
merchantable and usable condition and is salable in the ordinary course of
business within a reasonable time, except to the extent (and in the amount)
reserved for on the Company Financial Statements.  None of the Company's
inventory has been consigned to others or is on consignment from others.

     SECTION 3.17      Receivables
     -----------------------------

     .  Schedule 3.17 discloses all trade and other accounts receivable of the
        -------------                                                         
Company ("Receivables") outstanding as of September 30, 1998, presented on an
aged basis, and separately identifies the name of each account debtor and the
total amount of each related Receivable.  All Receivables, whether reflected on
the Company Financial Statements, disclosed on Schedule 3.17 hereto or created
                                               -------------                  
after the date of the Company Financial Statements, arose from bona fide sale
transactions of the Company and no portion of any Receivable is subject to
counterclaim, defense or set-off or is otherwise in dispute, except to the
extent (and in the amount) reserved for on the Company Financial Statements for
normal cash and trade discounts, price protection, stock rotation and other
miscellaneous returns (and since the data of the Company Financial Statements,
such reserves for normal cash and trade discounts as are consistent with past
practice).  Except to the extent of the recorded reserve for doubtful accounts,
all of the Receivables are collectible in the ordinary course of business using
commercially reasonable efforts.

     SECTION 3.18      Bank Accounts
     -------------------------------

                                      -21-
<PAGE>
 
     .  Set forth in Schedule 3.18 is an accurate and complete list showing the
                     -------------                                             
name and address of each bank in which the Company has an account or safe
deposit box, the number of any such account or any such box and the names of all
Persons authorized to draw thereon or to have access thereto.

     SECTION 3.19      Real Property
     -------------------------------

     .  Schedule 3.19 discloses all real property currently owned by the Company
        -------------                                                           
(the "Owned Properties").  The Company owns the Owned Properties free and clear
of any liens or encumbrances other than liens for taxes not yet delinquent, such
matters as would be shown by an accurate survey of the Owned Properties, and the
matters described on Schedule 3.19 hereto (collectively, the "Permitted Title
                     -------------                                           
Exceptions").  Schedule 3.19 discloses all real properties currently leased by
               -------------                                                  
the Company (the "Leased Properties") and identifies the Company's leases (the
"Leases") of all such Leased Properties.  The Owned Properties and the Leased
Properties are collectively referred to herein as the "Real Properties."  The
Leases are in full force and effect and constitute the entire agreement between
the Company as tenants and the landlords thereunder with respect to the
respective Leased Properties.  The Company has not received written notice of
any default under any Lease that has not been remedied or waived.  There
currently exists no sublease of any Leased Property by the Company.  Copies of
all title insurance policies written in favor of the Company have been delivered
to Purchaser.  Except as may be disclosed in the Leases or such title policies,
the Company has not received written notice from any governmental authority that
a Real Property is in violation of any applicable land use, zoning, building or
fire code, statute, ordinance or law that has not been remedied or waived.  The
Company has not received written notice of condemnation of any Real Property.

     SECTION 3.20      Insurance
     ---------------------------

     .  Set forth in Schedule 3.20 is a complete list of insurance policies
                     -------------                                         
which the Company maintains with respect to the business or the operations,
properties or employees of the Company.  The Company has paid all premiums due
under said policies and such policies are in full force and effect.

     SECTION 3.21      Insider Interests
     -----------------------------------

     .  Except as set forth on Schedule 3.21 (and except for de- minimus
                               ------------                             
amounts), no director, officer or other Affiliate of the Company ("Related
Party") has any interest in any property, real or personal, tangible or
intangible of the Company, is indebted or otherwise obligated to the Company
(other than for employee reimbursement arising in the ordinary course of
business), has any contractual relationship with the Company (other than as an
employee of the Company) or is an officer, director, employee or consultant of a
competitor of the Company.  Except as set forth on Schedule 3.21, the Company is
                                                   -------------                
not indebted or otherwise obligated to any such Person, except for amounts due
under normal arrangements applicable to all employees generally as to salary or
reimbursement of ordinary business expenses not unusual in amount or
significance.  Except as set forth on Schedule 3.21, no Related Party will at
                                      -------------                          
any time after the Closing, pursuant to agreements or 

                                      -22-
<PAGE>
 
arrangements created prior to Closing, directly or indirectly, be or become
entitled to receive any payment or transfer of money or other property of any
kind from the Company, and the Company will not at any time after Closing for
any reason, directly or indirectly, be or become subject to any obligation of
any Related Party.

     SECTION 3.22      Permits
     -------------------------

     .  The Company holds all "Permits" (defined to include any permit,
certificate, license, franchise, privilege, approval, registration or
authorization required under any law in connection with the operation of its
assets and business).  All Permits of the Company are listed on Schedule 3.22.
                                                                -------------  
Each Permit is valid, subsisting and in full force and effect.  The Company is
in compliance with and has fulfilled and performed its obligations under each
Permit, and no event or condition or state of facts exists (or would exist upon
the giving of notice or lapse of time or any of them) that could constitute a
breach or default under any Permit.  The Company has not received any notice of
non-renewal of any Permit.

     SECTION 3.23      Disclosure
     ----------------------------

     .  No representation, warranty or written statement or certificate made or
furnished by the Company in this Agreement, or any Schedule or Exhibit furnished
to Purchaser pursuant to the express terms hereof, contains or will contain any
misstatement of a material fact or omits or will omit to state a material fact
necessary in order to make the representations, warranties and statements
contained herein and therein not misleading in light of the circumstances in
which they are made.

     SECTION 3.24      Board Recommendation
     --------------------------------------

     .  The Board of Directors of the Company, at a meeting duly called and
held, has by unanimous vote of those directors present (a) determined that this
Agreement and the transactions contemplated hereby, including the Merger, taken
together, are fair to and in the best interests of the Company's Stockholders,
and (b) resolved to recommend that the Company's Stockholders approve this
Agreement and the transactions contemplated herein, including the Merger (the
"Company Board Recommendation").

     SECTION 3.25      Brokers
     -------------------------

     .  Except for the engagement of B.T. Alex Brown, Inc., whose fees will be
paid by SymmetriCom, none of the Company, or any of its respective officers,
directors or employees has employed any broker or finder or incurred any
liability for any brokerage fees, commissions or finder's fees in connection
with the transactions contemplated by this Agreement.

                                  ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF SYMMETRICOM

                                      -23-
<PAGE>
 
     SymmetriCom represents and warrants to Purchaser and Purchaser Sub that:

     SECTION 4.01      Organization
     ------------------------------

     .  SymmetriCom is a corporation duly organized, validly existing and in
good standing under the laws of the State of California.

     SECTION 4.02      Title to Stock
     --------------------------------

     .  SymmetriCom is the beneficial and record owner of 6,000,000 shares of
Series A Preferred Stock and 4,000,000 shares of Common Stock of the Company and
SymmetriCom has good and marketable title thereto, free and clear of any liens,
"Encumbrances" (defined as any liability, debt, mortgage, deed of trust, pledge,
security interest, encumbrance, option, right of first refusal, agreement of
sale, adverse claim, easement, lien, assessment, restrictive covenant,
encroachment, burden or charge of any kind or nature whatsoever or any item
similar to related to the foregoing), security agreements, equities, charges,
conditions and restrictions.

     SECTION 4.03      Authority Relative to this Agreement
     ------------------------------------------------------

     .  SymmetriCom has all necessary corporate power and authority to execute
and deliver this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement by SymmetriCom and the
consummation by SymmetriCom of the transactions contemplated hereby have been
duly and validly authorized and approved by the Board of Directors of
SymmetriCom and no other corporate proceedings on the part of SymmetriCom are
necessary to authorize or approve this Agreement, or to consummate the
transactions contemplated hereby (other than following the date hereof and prior
to the Closing, the approval and adoption of the Merger and this Agreement by
the affirmative vote of the holders of a majority of the Shares then outstanding
and the approval of a majority of the Series A Preferred Stock, voting as a
separate class). This Agreement has been duly and validly executed and delivered
by SymmetriCom and, assuming the due and valid authorization, execution and
delivery of this Agreement by Purchaser and Purchaser Sub, constitutes a valid
and binding obligation of SymmetriCom enforceable against SymmetriCom in
accordance with its terms, except that such enforceability (i) may be limited by
bankruptcy, insolvency, moratorium or other similar laws affecting or relating
to the enforcement of creditors' rights generally and (ii) is subject to general
principles of equity.

     SECTION 4.04      No Conflict; Required Filings and Consents
     ------------------------------------------------------------

     .

                (a)  None of the execution, delivery or performance of this
Agreement by SymmetriCom, the consummation by SymmetriCom of the transactions
contemplated hereby or the compliance by SymmetriCom with any of the provisions
hereof will (i) conflict with or violate the Articles of Incorporation or By-
Laws of SymmetriCom, (ii) conflict with or violate any statute,

                                      -24-
<PAGE>
 
ordinance, rule, regulation, order, judgment or decree applicable to
SymmetriCom, or by which its properties or assets may be bound or affected.

                (b)  None of the execution, delivery or performance of this
Agreement by SymmetriCom, the consummation by SymmetriCom of the transactions
contemplated hereby or the compliance by SymmetriCom with any of the provisions
hereof will require any consent, waiver, approval, authorization or permit of,
or registration or filing with or notification to by SymmetriCom (any of the
foregoing being a "Consent"), any government or subdivision thereof, domestic,
foreign or supranational or any administrative, governmental or regulatory
authority, agency, commission, tribunal or body, domestic, foreign or
supranational (a "Governmental Entity"), except for (i) the filing of a
certificate of merger pursuant to the GCL, (ii) notifications required by
certain environmental statutes, and (iii) compliance with the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act").

                (c)  SymmetriCom is not subject to, or a party to, any charter,
bylaw, mortgage, lien, lease, license, permit, instrument, order, judgment or
decree, or any other agreement, contract or restriction of any kind or character
which would prevent consummation of the transactions contemplated by this
Agreement or compliance by SymmetriCom with the terms, conditions and provisions
hereof.

                                   ARTICLE V

         REPRESENTATIONS AND WARRANTIES OF PURCHASER AND PURCHASER SUB

     Purchaser and Purchaser Sub represent and warrant to the Company that:

     SECTION 5.01      Organization and Qualification
     ------------------------------------------------

     .  Purchaser is a corporation duly organized, validly existing and in good
standing under the laws of the State of its organization and each material
subsidiary of Purchaser is a corporation duly organized, validly existing and in
good standing under the laws of the jurisdiction of its organization. Purchaser
Sub is a corporation duly organized, validly existing and in good standing under
the laws of the State of its organization. Each of Purchaser and its material
subsidiaries (including Purchaser Sub) has the requisite corporate power and
authority to own, operate or lease its properties and to carry on its business
as it is now being conducted, and is duly qualified or licensed to do business,
and is in good standing, in each jurisdiction in which the nature of its
business or the properties owned, operated or leased by it makes such
qualification, licensing or good standing necessary, except where the failure to
have such power or authority, or the failure to be so qualified, licensed or in
good standing, would not have a Material Adverse Effect on Purchaser. The term
"Material Adverse Effect on Purchaser," as used in this Agreement, means any
adverse change, circumstance or effect that, individually or in the aggregate
with all other adverse changes, circumstances and effects, has had or will have
a materially adverse effect on the business, financial condition, 

                                      -25-
<PAGE>
 
properties or results of operations of Purchaser and its Subsidiaries taken as a
whole provided, however, that an effect of less than $100,000 shall be deemed
      --------  -------          
not to be a Material Adverse Effect.

     SECTION 5.02      Authority Relative to this Agreement
     ------------------------------------------------------

     .  Each of Purchaser and Purchaser Sub has all necessary corporate power
and authority to execute and deliver this Agreement and to consummate the
transactions contemplated hereby. The execution and delivery of this Agreement
by Purchaser and Purchaser Sub and the consummation by Purchaser and Purchaser
Sub of the transactions contemplated hereby have been duly and validly
authorized and approved by the Boards of Directors of Purchaser and Purchaser
Sub and by Purchaser as sole stockholder of Purchaser Sub, and no other
corporate proceedings on the part of Purchaser or Purchaser Sub are necessary to
authorize or approve this Agreement or to consummate the transactions
contemplated hereby.  This Agreement has been duly executed and delivered by
each of Purchaser and Purchaser Sub and, assuming the due and valid
authorization, execution and delivery by the Company, constitutes a valid and
binding obligation of each of Purchaser and Purchaser Sub enforceable against
each of them in accordance with its terms, except that such enforceability (i)
may be limited by bankruptcy, insolvency, moratorium or other similar laws
affecting or relating to the enforcement of creditors' rights generally and (ii)
is subject to general principles of equity.
 
     SECTION 5.03      No Conflict; Required Filings and Consents
     ------------------------------------------------------------

     .

                (a)  None of the execution and delivery of this Agreement by
Purchaser or Purchaser Sub, the consummation by Purchaser or Purchaser Sub of
the transactions contemplated hereby or compliance by Purchaser or Purchaser Sub
with any of the provisions hereof will (i) conflict with or violate the
organizational documents of Purchaser or Purchaser Sub, (ii) conflict with or
violate any statute, ordinance, rule, regulation, order, judgment or decree
applicable to Purchaser or Purchaser Sub, or any of their subsidiaries, or by
which any of them or any of their respective properties or assets may be bound
or affected, or (iii) result in a Violation pursuant to any note, bond,
mortgage, indenture, contract, agreement, lease, license, permit, franchise or
other instrument or obligation to which Purchaser or Purchaser Sub, or any of
their subsidiaries, is a party or by which any of their respective properties or
assets may be bound or affected, except in the case of the foregoing clauses
(ii) and (iii) for any such Violations which would not have a Material Adverse
Effect on Purchaser or materially adversely affect the ability of Purchaser or
Purchaser Sub to consummate the transactions contemplated hereby.

                (b)  None of the execution and delivery of this Agreement by
Purchaser and Purchaser Sub, the consummation by Purchaser and Purchaser Sub of
the transactions contemplated hereby or compliance by Purchaser and Purchaser
Sub with any of the provisions hereof will require any Consent of any
Governmental Entity, except for (i) the filing of a certificate of merger
pursuant to the GCL, (ii) compliance with the HSR Act and any requirements of
any foreign or supranational

                                      -26-
<PAGE>
 
Antitrust Laws and (iii) Consents the failure of which to obtain or make would
not have a Material Adverse Effect on Purchaser or materially adversely affect
the ability of Purchaser or Purchaser Sub to consummate the transactions
contemplated hereby.

     SECTION 5.04      Financing
     ---------------------------

     .  Subject to the condition set forth in Section 7.02(i), Purchaser or
Purchaser Sub will have available to it at the time required the funds necessary
to consummate the Merger and the transactions contemplated hereby.

     SECTION 5.05      Brokers
     -------------------------

     .  None of Purchaser, Purchaser Sub, any of their Subsidiaries, or any of
their respective officers, directors or employees has employed any broker or
finder or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the transactions contemplated by this Agreement, other
than Purchaser's engagement of A.G. Edwards with respect to a fairness opinion,
whose fees will be paid by Purchaser.

                                  ARTICLE VI

                                   COVENANTS

     SECTION 6.01      Conduct of Business of the Company
     ----------------------------------------------------

     .  Except as expressly contemplated by this Agreement or with the prior
written consent of Purchaser, during the period from the date of this Agreement
to the Effective Time, the Company will conduct its operations only in the
ordinary and usual course of business consistent with past practice and will use
its best reasonable efforts to preserve intact the business organization of the
Company, to keep available the services of its present officers and key
employees, and to preserve the good will of those having business relationships
with it. Without limiting the generality of the foregoing, and except as
otherwise expressly contemplated by this Agreement, the Company will not, prior
to the Effective Time, without the prior written consent of Purchaser:

                (a)  adopt any amendment to its Certificate of Incorporation or
By-laws or comparable organizational documents;
 
                (b)  issue, reissue, pledge or sell, or authorize the issuance,
reissuance, pledge or sale of (i) additional shares of capital stock of any
class, or securities convertible into, exchangeable for or evidencing the right
to substitute for, capital stock of any class, or any rights, warrants, options,
calls, commitments or any other agreements of any character, to purchase or
acquire any capital stock or any securities or rights convertible into,
exchangeable for, or evidencing the right to subscribe for, capital stock, other
than the issuance of Shares, pursuant to the exercise of Options outstanding on
the date hereof, or (ii) any other securities in respect of, in lieu of, or in
substitution for, Shares outstanding on the date hereof;

                                      -27-
<PAGE>
 
                (c)  declare, set aside or pay any dividend or other
distribution (whether in cash, securities or property or any combination
thereof) in respect of any class or series of its capital stock;

                (d)  split, combine, subdivide, reclassify or redeem, purchase
or otherwise acquire, or propose to redeem or purchase or otherwise acquire, any
shares of its capital stock, or any of its other securities other than (i) the
purchase and cancellation of Options in accordance with Section 1.09 of the
Agreement or (ii) repurchases from employees at cost upon termination of their
employment with the Company;

                (e)  except for increases in salary and wages granted to
officers and employees of the Company in conjunction with promotions or other
changes in job status or normal compensation reviews in the ordinary course of
business consistent with past practice (all of which shall be promptly disclosed
to Purchaser), increase the compensation or fringe benefits payable or to become
payable to its directors, officers or employees, or pay or award any benefit not
required by any existing plan or arrangement (including, without limitation, the
granting of stock options pursuant to the Option Plans or otherwise) or grant
any additional severance or termination pay to (other than as required by
existing agreements or policies listed on Schedule 5.01(e) hereto), or enter
                                          ----------------
into any employment or severance agreement with, any director, officer or other
employee of the Company or, except pursuant to arrangements disclosed in
Schedule 5.01(e) or as required by Section 1.09, establish, adopt, enter into,
- ----------------
amend, accelerate any rights or benefits or waive any performance or vesting
criteria under any collective bargaining, bonus, profit sharing, thrift,
compensation, stock option, restricted stock, pension, retirement, savings,
welfare, deferred compensation, employment, termination, severance or other
employee benefit plan, agreement, trust, fund, policy or arrangement for the
benefit or welfare of any directors, officers or current or former employees
(any of the foregoing being an "Employee Benefit Arrangement"), except in each
case to the extent required by applicable law or regulation; provided, however,
that nothing herein will be deemed to prohibit the payment of benefits as they
become payable;

                (f)  acquire, sell, lease or dispose of any assets or securities
which are material to the Company, or enter into any commitment to do any of the
foregoing or enter into any material commitment or transaction, in each case
outside the ordinary course of business consistent with past practice;

                (g)  (i) except for drawdowns and the payment of the Inter-
Company Loan described in Section 1.10 hereof, incur, assume or pre-pay any 
long-term debt or incur or assume any short-term debt, except that the Company 
may incur or pre-pay debt in the ordinary course of business in amounts and for
purposes consistent with past practice, (ii) assume, guarantee, endorse or
otherwise become liable or responsible (whether directly, contingently or
otherwise) for the obligations of any other Person except in the ordinary course
of business consistent with past practice, or (iii) make any loans, advances or
capital contributions to, or investments in, any other Person except in the
ordinary course of business consistent with past practice;

                (h)  settle or compromise any suit or claim or threatened suit
or claim;

                                      -28-
<PAGE>
 
                (i)  other than in the ordinary course of business consistent
with past practice, (i) modify, amend or terminate any contract, (ii) waive,
release, relinquish or assign any contract (or any of the Company's rights
thereunder), right or claim, or (iii) cancel or forgive any indebtedness owed to
the Company;

                (j)  make any tax election not required by law or settle or
compromise any tax liability, in either case that is material to the Company
except for an election pursuant to Section 338(h)10 of the Code in connection
with this Agreement and the transactions contemplated hereunder;

                (k)  make any material change, other than in the ordinary course
of business and consistent with past practice or as required by applicable law,
regulation or change in generally accepted accounting principles, applied by the
Company (including tax accounting principles);

                (l)  release any Person or entity from, or waive any provision
of, or any confidentiality agreement between it and another person or entity;

                (m)  agree in writing or otherwise to take any of the foregoing
actions prohibited under Section 5.01 or any action which would cause any
representation or warranty in this Agreement to be or become untrue or incorrect
in any material respect; or

                (n)  take any action that is outside the normal course of
business consistent with past practice to defer the payment of payables, or to
accelerate the collection of receivables.

     SECTION 6.02      Access to Information
     ---------------------------------------

     .  From the date of this Agreement until the Effective Time, the Company
will, and will cause its officers, directors, employees, counsel, advisors and
representatives (collectively, the "Company Representatives"), to give Purchaser
and Purchaser Sub and their respective officers, employees, counsel, advisors
and representatives (collectively, the "Purchaser Representatives") reasonable
access, during normal business hours, to the offices and other facilities and to
the books and records of the Company and will cause the Company Representatives
to furnish Purchaser, Purchaser Sub and Purchaser Representatives to the extent
available with such financial and operating data and such other information with
respect to the business and operations of the Company as Purchaser and Purchaser
Sub may from time to time reasonably request. Purchaser will comply with the
terms of the Confidentiality Agreement (as hereinafter defined).

     SECTION 6.03      Reasonable Best Efforts
     -----------------------------------------

     .

                (a)  Subject to the terms and conditions herein provided and to
applicable legal requirements, each of the parties hereto agrees to use its
reasonable best efforts to take, or cause to be taken, all action, and to do, or
cause to be done, and to assist and cooperate with the other parties

                                      -29-
<PAGE>
 
hereto in doing, as promptly as practicable, all things necessary, proper or
advisable under applicable laws and regulations to ensure that the conditions
set forth in Article VII are satisfied, to remove any injunctions or other
impediments or delays, legal or otherwise and to consummate and make effective
the transactions contemplated by this Agreement.

                (b)  If at any time after the Effective Time any reasonable
further action is necessary or desirable to carry out the purposes of this
Agreement, including the execution of additional instruments, the proper
officers and directors of each party to this Agreement shall take all such
necessary or desirable reasonable action.

     SECTION 6.04      Consents 
     --------------------------

     .

                (a)  Each of the parties will use its reasonable best efforts to
obtain as promptly as practicable all Consents of any Governmental Entity or any
other public or private person required in connection with, and waivers of any
Violations that may be caused by, the consummation of the transactions
contemplated by this Agreement.

                (b)  Each of the Company and Purchaser shall use its reasonable
best efforts to file as soon as practicable notifications under the HSR Act and
to respond as promptly as practicable to any inquiries received from the Federal
Trade Commission and the Antitrust Division of the Department of Justice for
additional information or documentation and to respond as promptly as
practicable to all inquiries and requests received from any other Governmental
Entity in connection with antitrust matters. The Purchaser (or the Purchaser
Sub) and the Company (or SymmetriCom) will each pay one-half of the filing fee
of the HSR notification.

                (c)  In furtherance and not in limitation of the foregoing, each
of Purchaser and the Company shall use its reasonable best efforts to resolve
such objections, if any, as may be asserted with respect to the transactions
contemplated by this Agreement under any antitrust, competition or trade
regulatory laws, rules or regulations of any Governmental Entity ("Antitrust
Laws"); provided, however, that nothing in this Agreement shall require, or be
        --------  -------      
construed to require, Purchaser or any of its affiliates to proffer to, or agree
to, sell or hold separate and agree to sell, before or after the Effective Time,
any assets, businesses, or interest in any assets or businesses of Purchaser,
the Company or any of their respective affiliates (or to consent to any sale, or
agreement to sell, by the Company of any of its assets or businesses) or to
agree to any changes or restrictions in the operations of any such assets or
businesses.

                (d)  Any party hereto shall promptly inform the others of any
material communication from the United States Federal Trade Commission, the
Department of Justice or any other governmental authority regarding any of the
transactions contemplated by this

                                      -30-
<PAGE>
 
Agreement. If any party or any affiliate thereof receives a request for
additional information or documentary material from any such government or
authority with respect to the transactions contemplated by this Agreement, then
such party will endeavor in good faith to make, or cause to be made, as soon as
reasonably practicable and after consultation with the other party, an
appropriate response in compliance with such request. Purchaser will advise the
Company promptly in respect of any understandings, undertakings or agreements
(oral or written) which Purchaser proposes to make or enter into with the
Federal Trade Commission, the Department of Justice or any other domestic or
foreign government or governmental or multinational authority in connection with
the transactions contemplated by this Agreement.

     SECTION 6.05      Public Announcements
     --------------------------------------

     .  The mutual press release with respect to the execution of this Agreement
shall be a joint press release acceptable to Purchaser, the Company and
SymmetriCom. Thereafter, so long as this Agreement is in effect prior to the
Closing, neither Purchaser nor Purchaser Sub, on the one hand, nor the Company
nor any affiliate of the Company, on the other, shall issue any press release or
otherwise make any public statement with respect to the transactions
contemplated by this Agreement without prior consultation with the other party,
except as may be required by law (it being understood and agreed that each of
Purchaser and the Company's parent corporation, SymmetriCom, intends to file a
Current Report on Form 8-K with respect to the transaction contemplated hereby
promptly after the date hereof).

     SECTION 6.06      Notification of Certain Matters
     -------------------------------------------------

     .  The parties shall promptly notify each other of (a) the occurrence or
non-occurrence of any fact or event regarding such notifying party which would
be reasonably likely (i) to cause any representation or warranty contained in
this Agreement to be untrue or inaccurate in any material respect at any time
from the date hereof to the Effective Time or (ii) to cause any material
covenant, condition or agreement under this Agreement not to be complied with or
satisfied in all material respects and (b) any failure of the notifying party,
as the case may be, to comply with or satisfy any covenant, condition or
agreement to be complied with or satisfied by it hereunder in any material
respect; provided, however, that no such notification shall affect the
         --------  -------                                            
representations or warranties of any party or the conditions to the obligations
of any party hereunder.

     SECTION 6.07      Acquisition Proposals
     ---------------------------------------

     .  Neither the Company nor any stockholder shall (nor shall the Company
permit any of its Affiliates to) directly or indirectly, solicit, initiate or
encourage any inquiries or the making of any proposals from, engage or
participate in any negotiations or discussions with, provide any confidential
information or data to, or enter into (or authorize) any agreement or agreement
in principle with any Person or announce any intention to do any of the
foregoing, with respect to any offer or proposal to acquire all or any
substantial part of the assets, properties, or the business of the Company or
the Shares, whether by merger, purchase of capital stock or assets or otherwise
(a "Competing Proposal"); provided, however, that at any time prior to the
                          --------  -------                               
approval of the Merger by the Company Stockholders', the Company may furnish
information to, and negotiate or otherwise 

                                      -31-
<PAGE>
 
engage in discussions with, any party who delivers an unsolicited Competing
Proposal to the Company, if and so long as the Board of Directors of the Company
determines in good faith by a majority vote (after consultation with and receipt
of written advice from outside counsel which is consistent with such a
determination) that failing to take such action would constitute a breach of the
fiduciary duties of the Board of Directors of the Company under applicable Law.
The Company shall immediately advise Purchaser, in writing, of any inquiry,
offer or proposal regarding a Competing Proposal and/or any determination by the
Company's Board of Directors with respect thereto, and shall keep Purchaser
informed at all times of the status thereof.

     SECTION 6.08      Additional SymmetriCom Obligations
     ----------------------------------------------------

     .  In order to induce Purchaser to enter into this Agreement, and as
further consideration for the promises and mutual covenants herein, SymmetriCom
further represents, warrants and covenants with Purchaser as follows:

                (a)  Voting.  SymmetriCom will vote or cause to be voted all 
                -----------   
shares of capital stock of the Company owned of record or beneficially owned or
held in any capacity by it or under its control in favor of the Merger and other
transactions provided for in or contemplated by this Agreement.

                (b)  Restriction on Transfer.  SymmetriCom will not sell, 
                ----------------------------   
transfer, pledge or otherwise dispose of any of the Shares or any interest
therein or agree to sell, transfer, pledge or otherwise dispose of any of the
Company or any interest therein prior to Closing or the termination of this
Agreement, without Purchaser's express written consent.

                                      -32-
<PAGE>
 
     SECTION 6.09      Certain Tax Matters
     -------------------------------------

                (a)  Liability for Taxes.
                ------------------------ 

                       (i)  SymmetriCom shall be liable for all Taxes (A)
imposed on the Company or any corporation (other than the Company) that joins
with SymmetriCom in filing a combined or consolidated tax return (the "Company
Tax Group") for any taxable year, or (B) imposed on the Company or for which the
Company may otherwise be liable, for any taxable year or period that ends on or
before the Closing Date (including Income Taxes attributable to the Section
338(h) (10) Election) (a "Pre-Closing Period") and, with respect to any period
beginning prior to the Closing Date and which does not terminate on the Closing
Date (a "Straddle Period"), the portion of such Straddle Period ending on and
including the Closing Date; provided, however, that SymmetriCom shall not be
liable for and shall not indemnify Purchaser for any (i) Taxes (other than Taxes
attributable to the Section 338(h) (10) Election) imposed on the Company as a
result of transactions (other than transactions in the ordinary course of
business) occurring on the Closing Date that are properly allocable to the
portion of the Closing Date after the Closing or (ii) any Taxes (other than
income, franchise or similar Taxes) reflected on the Current Balance Sheet or
incurred in the ordinary course of business since the Current Balance Sheet ((i)
and (ii) being referred to as "Excluded Taxes"). SymmetriCom shall be entitled
to any refund of Taxes for which it is liable pursuant to this paragraph (a)
(i).

                       (ii) Purchaser shall be liable for (A) all Taxes imposed
on the Company, or for which the Company may otherwise be liable, for any
taxable year or period that begins after the Closing Date (a "Post-Closing
Period") and, with respect to any Straddle Period, the portion of such Straddle
Period beginning after the Closing Date and (B) any Excluded Taxes. Purchaser
shall be entitled to any refund of Taxes for which it is liable pursuant to this
paragraph (a)(ii).

                       (iii)  For purposes of paragraphs (a)(i) and (a)(ii) of
this Section 6.09, whenever it is necessary to determine the liability for Taxes
     ------------
of SymmetriCom for a portion of any Straddle Period, the determination of the
Taxes of the Company for the portion of the Straddle Period ending on and
including, and the portion of the Straddle Period beginning after, the Closing
Date shall be determined by assuming that the Straddle Period consisted of two
taxable years or periods, one which ended at the close of the Closing Date and
the other which began at the beginning of the day following the Closing Date,
and items of income, gain, deduction, loss or credit of the Company for the
Straddle Period shall be allocated between such two taxable years or periods on
a "closing of the books basis" by assuming that the books of the Company were
closed at the close of the Closing Date; provided, however, that (I) Taxes
imposed on the Company as a result of transactions (other than transactions in
the ordinary course of business) occurring on the Closing Date that are properly
allocable to the portion of the Closing Date after the Closing shall be
allocated to the taxable year or period that is deemed to begin at the beginning
of the day following the Closing Date and (II) exemptions, allowances or
deductions that are calculated on an annual basis, such as the deduction for
depreciation, shall be apportioned between such two taxable years or periods on
a daily basis. For purposes of paragraphs (a)(i) and (a)(ii) of this Section
6.09, whenever

                                      -33-
<PAGE>
 
it is necessary to determine the liability for Taxes (other than Excluded Taxes)
attributable to real or personal property Taxes of the Company for a portion of
any Straddle Period, the total amount of such Taxes for the period in question
shall be multiplied by a fraction, the numerator of which is the number of days
of the Straddle Period that are in the Pre-Closing Period and the denominator of
which is the total number of days in the Straddle Period; provided, however,
                                                          --------  ------- 
that any amount of Straddle Period Taxes attributable to the increase in the
assessed value of real or personal property as a result of the transactions
contemplated by this Agreement shall be borne by Purchaser.

                (iv) For purposes of paragraphs (a) (i) and (a) (ii) of this
Section 6.09 whenever it is necessary to allocate an item of income, gain,
deduction, loss or credit to either a taxable year or period that ends on or
before the Closing Date or a taxable year or period that begins after the
Closing Date, rules consistent with those in Treas. Reg. (S) 1.1502-76(b) shall
be applied.

                (v)  If, as a result of any action, suit, investigation, audit,
claim, assessment or amended Tax Return, there is any change after the Closing
Date in an item of income, gain, loss, deduction or credit that results in an
increase in an Income Tax liability for which SymmetriCom would otherwise be
liable pursuant to paragraph (a) (i) of this Section 6.09, and such change
results in a decrease in the Income Tax liability of the Company, Purchaser, or
any Affiliate or successor thereof for any taxable year or period beginning
after the Closing Date or for the portion of any Straddle Period beginning after
the Closing Date, SymmetriCom shall not be liable pursuant to such paragraph (a)
(i) with respect to such increase to the extent of such decrease. If, as a
result of any action, suit, investigation, audit, claim, assessment or amended
Income Tax Return, there is any change after the Closing Date in an item of
income, gain, loss, deduction or credit that results in an increase in an Income
Tax liability for which Purchaser would otherwise be liable pursuant to
paragraph (a) (ii) of this Section 6.09, and such change results in a decrease
in the Income Tax liability of SymmetriCom or any Affiliate or successor thereof
(other than the Company) for any taxable year or period ending on or before the
Closing Date or for the portion of any Straddle Period ending on the Closing
Date (other than by reason of a carryback of losses or deductions), Purchaser
shall not be liable pursuant to such paragraph (a) (ii) with respect to such
increase to the extent of such decrease.

                (vi) Purchaser shall pay all Transfer Taxes. For purposes of
this Agreement, "Transfer Taxes" means all stamp, recordation, sales, use, real
property transfer or gains or similar transfer Taxes attributable to the actual
or deemed transfer of property or stock from SymmetriCom or the Company to
Purchaser or the Company, together with any penalties or interest with respect
to such taxes.

                (vii)  On or prior to the Closing Date, all Tax Sharing
Arrangements (other than this Agreement) between the Company, on one hand, and
SymmetriCom or any member of the Company Tax Group, on the other hand, shall
terminate and the Company shall not have any further rights or obligations
thereunder. For purposes of this paragraph, a "Tax Sharing Arrangement" shall
mean any agreement or arrangement for the allocation or payment of Tax

                                      -34-
<PAGE>
 
liabilities or payment for Tax benefits with respect to a consolidated, combined
or unitary Tax Return which Tax Return includes the Company.

                (b)  Tax Returns.
                ---------------- 

                       (i)  SymmetriCom shall file or cause to be filed when due
all Tax Returns that are required to be filed by or with respect to the Company
for taxable years or periods ending on or before the Closing Date and which
relate to Taxes for which SymmetriCom is liable pursuant to Section 6.09(a)(i)
and shall remit any Taxes due in respect of such Tax Returns, and Purchaser
shall file or cause to be filed when due all Tax Returns that are required to be
filed by or with respect to the Company for taxable years or periods ending
after the Closing Date and shall remit any Taxes due in respect of such Tax
Returns. Any Tax Returns required to be filed by Purchaser pursuant to this
Section 6.09 relating in whole or in part to Taxes for which SymmetriCom is
liable pursuant to paragraph (a)(i) of this Section 6.09 shall be submitted to
SymmetriCom for SymmetriCom's approval (which approval shall not be unreasonably
withheld) prior to Purchaser filing such Tax Returns. SymmetriCom or Purchaser
shall reimburse the other party for the Taxes for which SymmetriCom or Purchaser
is liable pursuant to paragraphs (a)(i) and (ii) of this Section 6.09 but which
are payable with Tax Returns to be filed by the other party pursuant to the
second preceding sentence upon the written request of the party entitled to
reimbursement, setting forth in detail the computation of the amount owed by
SymmetriCom or Purchaser, as the case may be, but in no event earlier than ten
(10) days prior to the due date for the payment of such Income Taxes.

                       (ii) With respect to the period prior to the Closing
Date, Purchaser shall promptly cause the Company to prepare and provide to
SymmetriCom a package of tax information materials, including, without
limitation, schedules and work papers (the "Tax Package"), required by the
Company to enable the Company to prepare and file all Income Tax Returns
required to be prepared and filed by it pursuant to paragraph (b) of this
Section 6.09. The Tax Package shall be completed in accordance with past
practice, including past practice as to providing such information, and as to
the method of computation of separate taxable income or other relevant measure
of income of the Company. SymmetriCom shall cooperate with any reasonable
request for information by Purchaser or the Company made in connection with the
preparation of the Tax Package. Purchaser shall cause the Tax Package to be
delivered to SymmetriCom within ninety (90) days after the Closing Date.

                (c)  Contest Provisions.
                ----------------------- 

                       (i)  Purchaser shall promptly notify SymmetriCom in
writing upon receipt by Purchaser, any of its Affiliates or the Company of
notice of any pending or threatened federal, state, local or foreign Tax audits,
examinations or assessments which may affect any Income Tax liability for which
SymmetriCom is liable pursuant to paragraph (a)(i) of this Section 6.09,
provided that failure to comply with this provision shall not affect Purchaser's
right to indemnification hereunder except to the extent such failure materially
impairs SymmetriCom's ability to contest any such Income Tax liabilities.

                                      -35-
<PAGE>
 
                       (ii) SymmetriCom shall have the sole right to represent
the Company's interests in any Income Tax audit or administrative or court
proceeding relating to taxable periods ending on or before the Closing Date, and
to employ counsel of its choice at its expense. In the case of any Straddle
Period, SymmetriCom shall be entitled to participate at its expense in any Tax
audit or administrative or court proceeding relating (in whole or in part) to
Taxes attributable to the portion of such Straddle Period ending on and
including the Closing Date and, with the written consent of Purchaser, and at
SymmetriCom's sole expense, may assume the entire control of such audit or
proceeding. Purchaser and SymmetriCom each agrees not to (and Purchaser shall
cause its Affiliates, including, after the Closing Date, the Company, and the
Company shall cause its Affiliates, not to) agree to settle any Tax claim which
may be the subject of indemnification by the other party pursuant to Section
6.09 without the prior written consent of the indemnifying party (which consent
shall not be unreasonably withheld).

                (d)  Assistance and Cooperation.  After the Closing Date, each
                -------------------------------           
of SymmetriCom and Purchaser shall (and cause their respective Affiliates to):

                       (i)  assist the other party in preparing any Tax Returns
which such other party is responsible for preparing and filing in accordance
with paragraph (b)of this Section 6.09;

                       (ii) cooperate fully in preparing for any audits of, or
disputes with taxing authorities regarding, any Tax Returns of the Company.

                       (iii)  make available to the other for inspection and
duplication and to any taxing authority as reasonably requested all information,
records, and documents relating to Taxes of the Company and shall maintain such
information, records and documents for a period of 15 years from the Closing
Date.

                       (iv) provide timely notice to the other in writing of any
pending or threatened Tax audits or assessments of the Company for taxable
periods for which the other may have a liability under this Section 6.09; and

                       (v)  furnish the other with copies of all correspondence
received from any taxing authority in connection with any Tax audit with respect
to any taxable period for which the other may have a liability under this
Section 6.09.

                (e)  Election Under Section 338(h)(10).
                -------------------------------------- 

                       (i)  SymmetriCom and Purchaser shall make a joint
election for the Company under Section 338(h)(10) of the Code with respect to
the purchase of the Company capital stock effected by the Merger (the "Section
338(h)(10) Election") together with any corresponding elections under state and
local tax laws. SymmetriCom and Purchaser shall within ninety (90) days of the
Closing exchange completed and executed copies of Internal Revenue Service Form
8023, any required schedules thereto, and any similar state forms. If any
changes are required in these forms as

                                      -36-
<PAGE>
 
a result of information which is first available after the Closing Date, the
parties will promptly agree on such changes.

                       (ii) At the Closing, Purchaser and SymmetriCom shall
agree on a written schedule (the "Allocation Schedule") allocating the Modified
Adjusted Deemed Sales Price, as defined in Treas. Reg. (S) 1.338(h) (10)-1(f),
for the Company, among the assets of the Company. The Allocation Schedule shall
be reasonable and shall be prepared in accordance with Section 338(h)(10) of the
Code and the regulations thereunder. Purchaser and SymmetriCom each agrees to
file (and to cause their respective Affiliates to file) all federal, state,
local and foreign Tax Returns consistent with the Allocation Schedule.

                (f)  FIRPTA Certificate.  At or prior to the Closing, the
                -----------------------   
Company shall provide Purchaser with a certificate described in Treas. Reg. (S)
1.1445-2(b) (2) to the effect that, as contemplated by such certificate,
SymmetriCom is not a foreign corporation, foreign partnership, foreign trust or
foreign estate (as those terms are defined in the Code and Treasury
Regulations).

                (g)  References to Company.  References in this Section 6.09 
                --------------------------   
to the Company shall mean, with respect to any period after the Effective Time,
the Surviving Corporation.

                (h)  Treatment of Transaction.  SymmetriCom and Purchaser 
                -----------------------------   
shall, and shall cause their respective Affiliates to, treat the Merger for all
Tax purposes as a purchase by Purchaser from SymmetriCom of the Company's
capital stock.

                (i)  Adjustment to Purchase Price.  Any payment by Purchaser 
                ---------------------------------   
or SymmetriCom to the other party under this Section 6.09 will be deemed to be
an adjustment to the Purchase Price.

     SECTION 6.10      Linfinity Audited Financials
     ----------------------------------------------

     .  Within sixty (60) days of the Closing, SymmetriCom will at its expense
and using its current auditors provide to Purchaser audited financial statements
for Linfinity for the three year period ended on June 30, 1998.  Following the
Closing Microsemi and Linfinity will provide SymmetriCom and its auditors with
full access to the books and records of Linfinity for purposes of completion of
the audited financials under this Section 6.10.

                                  ARTICLE VII

                           CONDITIONS TO THE MERGER

     SECTION 7.01      Conditions to Obligations of Each Party to Effect the
     -----------------------------------------------------------------------
Merger
- ------

     .  The respective obligations of each party to this Agreement to effect the
Merger shall be subject to the satisfaction at or prior to the Closing of the
following conditions:

                                      -37-
<PAGE>
 
                (a)  Stockholder Approval.  This Agreement and the Merger shall
                -------------------------                
have been approved and adopted by the Stockholders of the Company by the
requisite vote under applicable law and the Company's Certificate of
Incorporation.

                (b)  No Injunctions or Restraints; Illegality.  No temporary 
                ---------------------------------------------                
restraining order, preliminary or permanent injunction or other order issued by
any court of competent jurisdiction or other legal or regulatory restraint or
prohibition preventing the consummation of the Merger shall be in effect, nor
shall any proceeding brought by an administrative agency or commission or other
governmental authority or instrumentality seeking any of the foregoing be
pending; nor shall there be any action taken, or any statute, rule, regulation
or order enacted, entered, enforced or deemed applicable to the Merger, which
makes the consummation of the Merger illegal. All waiting periods, if any, under
the HSR Act relating to the transactions contemplated hereby will have expired
or terminated early.

     SECTION 7.02      Additional Conditions to Obligations of Purchaser and 
     -----------------------------------------------------------------------
Purchaser Sub
- -------------

     .  The obligations of Purchaser and Purchaser Sub to consummate the Merger
and the transactions contemplated by this Agreement shall be subject to the
satisfaction at or prior to the Closing of each of the following conditions, any
of which may be waived, in writing, exclusively by Purchaser:

                (a)  Representations and Warranties.  The representations and 
                -----------------------------------   
warranties of the Company and SymmetriCom contained in this Agreement shall have
been true and and correct in all material respects as of the date of this
Agreement. In addition, the representations and warranties of the Company and
SymmetriCom contained in this Agreement shall be true and correct in all
material respects on and as of the Effective Time except for changes
contemplated by this Agreement and except for those representations and
warranties which address matters only as of a particular date (which shall
remain true and correct in all material respects as of such date), with the same
force and effect as if made on and as of the Effective Time, except in such
cases where all of the failures of any kind to be so true and correct would not
in the aggregate have a Material Adverse Effect on the Company.

                (b)  Agreements and Covenants.  The Company and SymmetriCom
                -----------------------------   
shall have performed or complied in all material respects with all agreements
and covenants required by this Agreement to be performed or complied with by it
on or prior to the Effective Time.

                (c)  Material Adverse Effect.  There shall not have occurred 
                ----------------------------   
any event, effect or change that has had or would reasonably be expected to have
a Material Adverse Effect on the Company.

                (d)  Certificate of the Company.  Purchaser shall have been
                -------------------------------   
provided with a certificate executed on behalf of the Company by its Chief
Executive Officer, President or Chief Financial Officer or higher ranking
officer and by the Chief Executive Officer of SymmetriCom to the effect

                                      -38-
<PAGE>
 
that, as of the Effective Time the conditions set forth in Section 7.02(a), (b),
(f) and (g) have been satisfied.

                (e)  Legal Opinion.  Purchaser shall have received a legal 
                ------------------   
opinion from Wilson Sonsini Goodrich & Rosati (counsel to the Company) in
substantially the form attached hereto as Exhibit B hereto.
                                          ---------        

                (f)  Inter-Company Loan.  The Inter-Company Loan shall have 
                -----------------------   
been paid and/or canceled on or prior to the Closing.

                (g)  Assignment and Assumption of Bonus Plan.  The Bonus Plan 
                --------------------------------------------   
shall have been effectively and legally assigned to and assumed by SymmetriCom
subject to the right of SymmetriCom to use any Linfinity excess cash against its
obligations thereunder pursuant to Section 1.10 hereof.

                (h)  Financing.  All of the conditions set forth in the 
                --------------   
commitment letter for a $60,000,000 Senior Secured Credit Facility, arranged by
CIBC Oppenheimer Corp., to Purchaser dated January 15, 1999 as amended by a side
letter dated February ___, 1999 shall have been satisfied or met, other than
those incumbent upon Purchaser.

     SECTION 7.03      Additional Conditions to the Obligations of the Company
     -------------------------------------------------------------------------
and SymmetriCom
- ---------------

     .  The obligations of the Company and SymmetriCom to consummate the Merger
and the transactions contemplated by this Agreement shall be subject to the
satisfaction at or prior to the Closing of each of the following conditions, any
of which may be waived, in writing, exclusively by the Company:

                (a)  Representations and Warranties.  The representations and 
                -----------------------------------   
warranties of the Purchaser and Purchaser Sub contained in this Agreement shall
have been true and correct in all material respects as of the date of this
Agreement. In addition, the representations and warranties of the Purchaser and
Purchaser Sub contained in this Agreement shall be true and correct in all
material respects on and as of the Effective Time except for changes
contemplated by this Agreement and except for those representations and
warranties which address matters only as of a particular date (which shall
remain true and correct in all material respects as of such date), with the same
force and effect as if made on and as of the Effective Time, except in such
cases where the failure to be so true and correct would not have a Material
Adverse Effect on the Purchaser and Purchaser Sub.

                (b)  Agreements and Covenants.  Purchaser and Purchaser Sub 
                -----------------------------             
shall have performed or complied in all material respects with all agreements
and covenants required by this Agreement to be performed or complied with by
them on or prior to the Effective Time;

                (c)  Legal Opinion.  The Company shall have received a legal 
                ------------------   
opinion from legal counsel to Purchaser, substantially in the form attached
hereto as Exhibit D.
          ---------

                                      -39-
<PAGE>
 
                (d)  Certificate of Purchaser.  The Company shall have been 
                -----------------------------   
provided with a certificate executed on behalf of Purchaser by its Chief
Executive Officer, President or Chief Financial Officer to the effect that, as
of the Effective Time, the conditions set forth in this Section 7.03, (a) and
(b) have been satisfied.

                                 ARTICLE VIII

                       TERMINATION, AMENDMENT AND WAIVER

     SECTION 8.01      Termination
     -----------------------------

     .  Except as provided in Section 8.02 below, this Agreement may be
terminated and the Merger abandoned at any time prior to the Effective Time:

                (a)  by mutual consent of the Company and Purchaser;

                (b)  by the Company or Purchaser if: (i) there shall be a final
nonappealable order of a foreign, federal or state court in effect preventing
consummation of the Merger; or (ii) there shall be any statute, rule, regulation
or order enacted, promulgated or issued or deemed applicable to the Merger by
any Governmental Entity that would make consummation of the Merger illegal;

                (c)  by the Company or Purchaser if it is not in material breach
of its obligations under this Agreement and if the Effective Time has not
occurred before 5:00 p.m. (Pacific Standard time) forty-five (45) days following
the later of: (i) the date of this Agreement; and (ii) the date the HSR
notification is filed pursuant to Section 6.04 hereof (provided that the right
to terminate this Agreement under this Section 8.01(c) shall not be available to
a party whose failure to fulfill any obligation hereunder has been a principal
cause of the failure of the Effective Time to occur on or before such date of
termination or if the failure of the Effective Time to occur on or before such
date has resulted principally from such failure of such party);

                (d)  by Purchaser if there shall be any action taken, or any
statute, rule, regulation or order enacted, promulgated or issued or deemed
applicable to the Merger, by any Governmental Entity, which would: (i) prohibit
the Purchaser's ownership or operation of all or any portion of the business of
the Company or (ii) compel Purchaser or the Company to dispose of or hold
separate, all or a portion of the business or assets of Purchaser or the Company
as a result of the Merger;

                (e)  by SymmetriCom or the Company if it is not in material
breach of its obligations under this Agreement and there has been a material
breach of any representation, warranty, covenant or agreement contained in this
Agreement on the part of Purchaser or Purchaser Sub and such breach has not been
cured within ten (10) business days after written notice to Purchaser; provided,
                                                                       --------
however, that, no cure period shall be required for a breach which by its 
- -------                                                     
nature cannot be cured;

                (f)  by Purchaser if it is not in material breach of its
obligations under this Agreement and there has been a material breach of any
representation, warranty, covenant or agreement

                                      -40-
<PAGE>
 
contained in this Agreement on the part of SymmetriCom or the Company and such
breach has not been cured within ten (10) business days after written notice to
the Company; provided, however, that, no cure period shall be required for a
             --------  ------- 
breach which by its nature cannot be cured;

                (g)  by Purchaser if an event, effect or change having or which
reasonably would be expected to have a Material Adverse Effect on the Company
shall have occurred after the date of this Agreement;

     Where action is taken to terminate this Agreement pursuant to this Section
8.01, it shall be sufficient for such action to be authorized by the Board of
Directors (as applicable) of the party taking such action.

     SECTION 8.02      Effect of Termination
     ---------------------------------------

     .  In the event of termination of this Agreement as provided in Section
8.01, this Agreement shall forthwith become void and there shall be no liability
or obligation on the part of Purchaser or the Company, or their respective
officers, directors or Stockholders, provided that the provisions of Section
8.05 and this Section 8.02 of this Agreement shall remain in full force and
effect and survive any termination of this Agreement.

     SECTION 8.03      Amendment
     ---------------------------

     .  Except as is otherwise required by applicable law, this Agreement may be
amended by the parties hereto at any time by execution of an instrument in
writing signed on behalf of each of the parties hereto.

     SECTION 8.04      Extension; Waiver
     -----------------------------------

     .  At any time prior to the Effective Time, the Company and SymmetriCom, on
the one hand, and Purchaser and Purchaser Sub, on the other hand, may, to the
extent legally allowed, (i) extend the time for the performance of any of the
obligations of the other party hereto, (ii) waive any inaccuracies in the
representations and warranties made to such party contained herein or in any
document delivered pursuant hereto, and (iii) waive compliance with any of the
agreements or conditions for the benefit of such party contained herein.  Any
agreement on the part of a party hereto to any such extension or waiver shall be
valid only if set forth in an instrument in writing signed on behalf of such
party.  Any waiver or extension given under this Section 8.04 shall not operate
as a waiver of extension with respect to any subsequent or other failure.

     SECTION 8.05      Fees and Expenses; Termination Fee
     ----------------------------------------------------

     .

                                      -41-
<PAGE>
 
                (a)  Except as expressly contemplated by this Agreement,
including but not limited to the provisions of Section 8.05(b) and (c), each
party hereto shall bear its own expenses and costs in connection with this
Agreement and the transactions contemplated hereby.

                (b)  SymmetriCom shall pay Purchaser a liquidated damages
termination fee of $500,000 upon the termination of this Agreement by Purchaser
and/or Purchaser Sub pursuant to Section 8.01(f);

                (c)  Purchaser shall pay SymmetriCom a liquidated damages
termination fee of $500,000 upon the termination of this Agreement by
SymmetriCom and/or the Company pursuant to Section 8.01(e);

                (d)  The fees payable pursuant to Section 8.03(b) or (c), as the
case may be, shall be paid within three (3) business days after demand therefor
has been notified in accordance with this Agreement.


                                  ARTICLE IX

                                INDEMNIFICATION

     SECTION 9.01      Survival of Representations and Warranties
     ------------------------------------------------------------

     .

                (a)  The representations and warranties of SymmetriCom and
Linfinity set forth in Article III of this Agreement shall survive the Closing
until the first anniversary thereof, provided, however, that the representations
                                     --------  -------    
and warranties of SymmetriCom and the Company contained in Sections 3.05, 3.11,
3.13 and 3.22 shall survive the Closing until the second anniversary thereof,
and provided further that Sections 3.01, 3.03, 3.04, 4.02 and 4.03 shall survive
    -------- -------
the Closing indefinitely.

                (b)  The representations and warranties of SymmetriCom in
Article IV (other than those set forth in Sections 4.02 and 4.03) of this
Agreement and the representations and warranties of Purchaser and Purchaser Sub
in Article V of this Agreement shall terminate upon the Closing.

     SECTION 9.02      SymmetriCom Indemnity
     ---------------------------------------

     .

                (a)  SymmetriCom shall indemnify, defend and hold harmless
Purchaser, its subsidiaries, including but not limited to the Surviving
Corporation, and their respective officers, directors, employees and agents
(collectively, the "Purchaser Indemnified Persons") against all claims, demands,
actions, obligations, suits, fines, losses, liabilities, damages, deficiencies,
costs and expenses, including without limitation reasonable attorneys',
accountants' and expert witness' fees,

                                      -42-
<PAGE>
 
costs and expenses of investigation, and the costs and expenses of enforcing the
indemnification (hereinafter individually a "Loss" and collectively "Losses")
incurred by the Purchaser Indemnified Persons and arising out of or relating to:

                       (i)  any inaccuracy or breach by SymmetriCom and/or
Linfinity of any representation or warranty made by it under Article III of this
Agreement, except as set forth in Section 9.02(c) below;

                       (ii) any Losses related to claims by current or former
employees of Linfinity with respect to occurrences or omissions that took place
prior to or upon the Closing including, but not limited to, claims related to
Options and claims related to the Bonus Plan;

                       (iii)  any liabilities of SymmetriCom provided for in
Section 2.01 of this Agreement; and

                       (iv) any liabilities of SymmetriCom provided for in
Section 6.09(a)(i) of this Agreement.

                (b)  Purchaser shall indemnify, defend and hold harmless
SymmetriCom, its subsidiaries and their respective officers, directors,
employees and agents (collectively, the "SymmetriCom Indemnified Persons")
against any Loss or Losses as defined in Section 9.02(a) incurred by any of them
arising out of or relating to:

                       (i)  any inaccuracy or breach of the representations and
warranties made by Purchaser and/or Purchaser Sub in Article V of this
Agreement;

                       (ii) any Losses or liabilities under Section 6.09(a)(ii)
or (vi) of this Agreement; and

                       (iii)  any Losses or liabilities relating to the Company
that arise or relate solely to occurrences or omissions after the Closing.

                (c)  Notwithstanding Section 9.02(a)(i) above or anything to the
contrary contained in this Agreement:

                       (i)  with respect to any remedial actions which are
required or otherwise recommended as set forth in that certain Fire, Life Safety
and Code Compliance Review dated August 20, 1997 by Ehrlich-Rominger ("H6
Report"), the parties acknowledge that the Purchase Price has been negotiated
with the full understanding of the matters raised in the H6 Report ("H6 Report
Remedial Actions"), and no claims shall be made by Purchaser against SymmetriCom
with respect to or otherwise arising out of the H6 Report or H6 Report Remedial
Actions (including, without limitation, any Third Party Claims of any kind or
nature, as defined hereinafter, arising out of SymmetriCom's failure to complete
any or all of the H6 Report Remedial Actions prior to the

                                      -43-
<PAGE>
 
Closing), nor shall SymmetriCom make any claims against Purchaser arising out of
Purchaser's failure to complete such H6 Report Remedial Actions after the
Closing; and

                       (ii) with respect to Section 3.15 and environmental
representations set forth in Article III, Purchaser and SymmetriCom acknowledge
that Purchaser has reviewed that certain report entitled Soil and Groundwater
Investigations Conducted at the Facilities Located at 11861 Western Avenue and
11652 Markon Drive, Garden Grove, California prepared by URS Greiner Woodward
Clyde and dated January 27, 1999, and that certain Contingent Environmental
Liability Report dated January 25, 1999 by EQQUA (the "Phase II Site and
Liability Assessments") and Purchaser agrees that based on Purchaser's and its
consultant's review of the Phase II Site and Liability Assessments,
SymmetriCom's liability for any violations of the representations set forth in
Section 3.15 or any other environmental representations set forth in Article III
shall be limited to the $128,000. SymmetriCom shall not have any liability in
excess of that provided for in this Section 9.02(c)(ii) for any violations of
the representations set forth in Section 3.15 or any other environmental
representations set forth in Article III.

     SECTION 9.03      Notification and Defense of Claims
     ----------------------------------------------------

     .

               (a)  Notification.  Other than with respect to claims for 
               -----------------         
indemnification under Section 6.09 (which Section 6.09 claims shall be treated
as provided for therein), the "Indemnified Persons" (referred to hereinafter as
the Purchaser Indemnified Persons or the SymmetriCom Indemnified Persons, as the
case may be) will give written notice to the "Indemnitors" (referred to
hereinafter as SymmetriCom, in the case of indemnifications pursuant to Section
9.02(a)(i), (ii) or (iii) and Purchaser, in the case of indemnifications
pursuant to Section 9.02(b)(i) or (iii)) of any claim for Losses for which the
Indemnified Persons claim a right of indemnification under Section 9.02 (an
"Indemnification Notice"); provided, however, that if the Indemnified Persons
have received from any third party actual notice of any actual or threatened
demand, claim, action, suit, proceeding or investigation by such third party (a
"Third Party Claim"), then the Indemnified Persons shall provide the
Indemnification Notice to the Indemnitors within ten (10) days of receiving such
actual notice; and provided, further, that no failure to so notify the
Indemnitors of a Third Party Claim will relieve the Indemnitees of any
obligation to indemnify the Indemnified Persons unless and except to the extent
that such failure to so notify prejudices the position of the Indemnitors in
responding to such Third Party Claim. The Indemnification Notice shall include:

                       (i)  A summary description of the facts giving rise to
any indemnification provided for in Section 9.02 (with such material detail and
documents related thereto as are then reasonably available to the Indemnified
Persons), and will specify the estimated amount of the Loss for which
indemnification is claimed, to the extent known to the Indemnified Persons; and

                       (ii) If the facts giving rise to any indemnification
provided for in Section 9.02 involve a Third Party Claim, then the Indemnified
Persons shall indicate whether they

                                      -44-
<PAGE>
 
have elected (1) to tender to the Indemnitors the defense of such Third Party
Claim through counsel of the Indemnitors' own choosing, subject to the terms of
Section 9.03(d) or 9.03(e), as the case may be, or (2) to assume the defense of
any such Third Party Claim through counsel of the Indemnified Persons' own
choosing.

                (b)  Response.  The Indemnitors will have twenty (20) days 
                -------------       
following delivery of the Indemnification Notice to make such investigation of
the claim as they deem necessary or desirable. On or prior to the expiration of
such 20-day period, the Indemnitors will, by written notice to the Indemnified
Persons (a "Response Notice"):

                       (i)  Either (1) admit liability in whole, (2) admit that
the claim is so covered by Section 9.02 but dispute the amount of the claim, or
(3) dispute that any amount of the claim is so covered; and

                       (ii) If the defense of a Third Party Claim has been
tendered to the Indemnitors pursuant to Section 9.03(a)(ii), indicate whether
the Indemnitors will assume or decline the tendered defense.

The failure of the Indemnitors to deliver to the Indemnified Persons a timely
Response Notice in accordance with this Section 9.03(b) will be deemed an
admission of liability for the entire Loss as set forth in the Indemnification
Notice and a decline to assume the tendered defense of a Third Party Claim, if
such defense has been tendered.

                (c)  Indemnity Disputes.  If the Indemnitors deliver to the 
                -----------------------   
Indemnified Persons a timely Response Notice pursuant to Section 9.03(b)
disputing the amount of the claim or disputing that the claim is covered by
Section 9.02, or if any other dispute arises with respect to this Article IX,
then the Indemnitors and the Indemnified Persons will use their best efforts to
resolve such dispute. In the event the Indemnitors and the Indemnified Persons
resolve the dispute, they will both execute a memorandum setting forth such
resolution and, if applicable, the amount of any Loss payable to the Indemnified
Persons. In the event the Indemnitors and the Indemnified Persons are unable to
resolve such dispute within thirty (30) days from the Indemnified Persons'
receipt of the Response Notice pursuant to Section 9.03(b), the Indemnitors and
the Indemnified Persons will be entitled to initiate legal proceedings in order
to resolve such dispute.

                (d)  Defense by Indemnitors.  If the defense of a Third Party 
                ---------------------------   
Claim is tendered by the Indemnified Persons to the Indemnitors pursuant to
Section 9.03(a)(ii) and is subsequently assumed by the Indemnitors, the
Indemnified Persons will be entitled, at their own expense, to participate in
such settlement or defense through counsel chosen by the Indemnified Persons. If
the Indemnitors assume the defense of the Third Party Claim, they will take all
steps reasonably necessary in the defense or settlement of the Third Party Claim
and will hold the Indemnified Persons harmless from and against all Losses
(other than the Indemnified Persons' expenses of participation in such defense
or settlement) caused by or arising out of any settlement thereof or any
judgment in connection therewith. The Indemnitor may not, in the defense of any
Third Party Claim they assume, except 

                                      -45-
<PAGE>
 
with the written consent of the Indemnified Persons, consent to the entry of any
judgment or enter into any settlement (i) which does not include as an
unconditional term thereof the giving to the Indemnified Persons by the third
party of a full and final release from all liability in respect of such Third
Party Claim, (ii) which will limit, restrict or otherwise affect the right of
the Indemnified Persons to carry on or conduct business (then or in the future),
or require any payment to be made by the Indemnified Persons or limit, restrict,
make more expensive or less profitable or otherwise adversely affect the manner
in which the Indemnified Persons carry on or conduct business (then or in the
future) or (iii) under which the amount of settlement or judgment against the
Indemnified Persons exceeds the amount of indemnification for such Third Party
Claim then available to the Indemnified Persons from the Indemnitors.

                (e)  Defense by Indemnified Persons.  If the Indemnitors do 
                -----------------------------------   
not assume the defense of a Third Party Claim within the 20-day period required
by Section 9.03(b), or if the Indemnified Persons assume the defense of any such
Third Party Claim pursuant to Section 9.03(a)(ii)(2), then the Indemnified
Persons may defend such Third Party Claim in such manner as they may deem
appropriate, in which case legal expenses of the Indemnified Persons' counsel
and all other expenses incurred in such defense will be promptly paid by the
Indemnitors as receipts, invoices or other reasonable evidence of such expenses
are presented to the Indemnitees. In such case, the Indemnified Persons may
settle such Third Party Claim on such terms as the Indemnified Persons
reasonably deem appropriate, and the Indemnitors will promptly pay the
Indemnified Persons for the Losses incurred as a result of such settlement for
which the Indemnified Persons are entitled to be indemnified. If no such
settlement of such Third Party Claim is made, the Indemnitors will promptly pay
the Indemnified Persons for the Losses arising out of any judgment rendered with
respect to such Third Party Claim; provided, however, that if such judgment is
                                   --------  -------
appealable and the Indemnified Persons notify the Indemnitors of their intention
not to appeal, the Indemnitors may prosecute such appeal, at their sole cost and
expense, subject to the terms set forth in this Article IX. Notwithstanding
anything in this Article IX to the contrary, (i) the Indemnitors shall not be
responsible for the fees, costs or expenses of the Indemnified Persons in excess
of such fees, costs or expenses which are reasonable, and (ii) if the
Indemnified Persons elect to assume the defense of any Third Party Claim without
first tendering the defense of such Third Party Claim to the Indemnitees under
Section 9.03(a)(ii), and if the Indemnified Persons then enter into a settlement
or consent to a judgment in respect of such Third Party Claim without the
approval of the Indemnitors (which approval will not unreasonably be withheld),
then the amount of such settlement or judgment shall not be determinative of the
amount of the Loss against which the Indemnified Persons are entitled to
indemnification under this Article IX. In connection with any settlement entered
into by the Indemnified Persons and approved by the Indemnitees, the Indemnified
Persons shall grant to the Indemnitors an unconditional release in connection
with the specific Losses to which such settlement relates, contingent upon
payment by the Indemnitors of the amounts required by this Article IX (which
amounts shall be specified in such release).

     SECTION 9.04      Order of Payment; Exclusion and Limitation of Liability
     -------------------------------------------------------------------------

                                      -46-
<PAGE>
 
     .  Notwithstanding the foregoing Sections 9.01 through 9.03, the following
provisions shall apply in the event the Purchaser Indemnified Persons incur any
Losses covered by Section 9.02.

                (a)  Payment for Breach of SymmetriCom and Linfinity 
                ----------------------------------------------------
Representations and Warranties.  With respect to Losses arising in connection 
- ------------------------------   
with Article III (other than Sections 3.01, 3.03 and 3.04) and Section
9.02(a)(i) of this Agreement, and subject to Section 9.02(c), the amount of any
Loss against which the Purchaser Indemnified Persons are entitled to
indemnification under Section 9.02(a)(i) shall be limited to the Escrow Fund
amount of $1,125,000 (as defined under the Escrow Agreement) and shall be made
under the terms of the Escrow Agreement.

                (b)  De Minimus Losses.  The Purchaser Indemnified Persons 
                ----------------------   
shall not be entitled to make a claim for indemnification under Section
9.02(a)(i) until the amount of Losses suffered by the Purchaser Indemnified
Persons exceeds $100,000. If the threshold amount is reached, the Purchaser
Indemnified Persons may recover the full amount of Losses, including the
threshold amount.

                (c)  Limitation of Liability.  In no case shall SymmetriCom be 
                ----------------------------   
required to provide indemnification under this Agreement in an amount in excess
of the amount of cash consideration it is entitled to receive under this
Agreement; provided, however that such limitation shall not apply in the
           --------  -------                                            
case of actual fraud by SymmetriCom.

                (d)  Non-Exclusion of Amounts Below Material Adverse Effect.  
                ----------------------------------------------------------- 
In no event shall the presence of any qualification of a representation or
warranty with the term "Material Adverse Effect" limit SymmetriCom's liability
with respect to indemnifying against the entire amount of Loss otherwise
provided for in this Agreement, including the portion which by itself would not
constitute a "Material Adverse Effect."

     SECTION 9.05      General
     ------------------------- 

     .

                (a)  For purposes of this Article IX, Purchaser shall be agent
and attorney-in-fact (the "Purchaser Indemnified Persons' Agent") for each
Purchaser Indemnified Person, to give and receive notices and communications, to
request delivery to Purchaser Indemnified Persons of monies subject to the
Escrow Agreement or otherwise due to the Purchaser Indemnified Persons
hereunder, to agree, negotiate, enter into settlements and compromises, demand
initiation of legal proceedings and comply with orders or awards in any such
proceeding, and to take all other actions necessary or appropriate in the
judgment of the Purchaser Indemnified Persons' Agent on behalf of the Purchaser
Indemnified Persons with respect to the matters subject to this Article IX or
the Escrow Agreement. No bond shall be required of the Purchaser Indemnified
Persons' Agent, and the Purchaser Indemnified Persons' Agent shall not receive
compensation for its services. Notices or communications to or from the
Purchaser Indemnified Persons' Agent shall constitute notice to or from each of
the Purchaser Indemnified Persons. A decision, act, consent or instruction of
the Purchaser Indemnified Persons' Agent shall constitute the decision, act,
consent or instruction of all

                                      -47-
<PAGE>
 
the Purchaser Indemnified Persons and shall be final, binding and conclusive
upon each of such Purchaser Indemnified Persons, and SymmetriCom and the Escrow
Agent (as such term is defined in the Escrow Agreement) may rely upon any such
decision, act, consent or instruction of the Purchaser Indemnified Persons'
Agent as being the decision, act, consent or instruction of each Purchaser
Indemnified Person, notwithstanding any notice to the contrary from any
Purchaser Indemnified Person. SymmetriCom and the Escrow Agent are hereby
relieved from any liability to any Purchaser Indemnified Person for any acts
done by them in accordance with such decision, act, consent or instruction of
the Purchaser Indemnified Persons' Agent.

                (b)  SymmetriCom shall be agent and attorney-in-fact (the
"SymmetriCom Indemnified Persons' Agent") for each SymmetriCom Indemnified
Person, to give and receive notices and communications, to request delivery to
SymmetriCom Indemnified Persons of monies due to the SymmetriCom Indemnified
Persons hereunder, to agree, negotiate, enter into settlements and compromises,
demand the initiation of legal proceedings and comply with orders or awards made
in such proceeding, and to take all other actions necessary or appropriate in
the judgment of the SymmetriCom Indemnified Persons' Agent on behalf of the
SymmetriCom Indemnified Persons with respect to the matters subject to this
Article IX or the Escrow Agreement. No bond shall be required of the SymmetriCom
Indemnified Persons' Agent, and the SymmetriCom Indemnified Persons' Agent shall
not receive compensation for its services. Notices or communications to or from
the SymmetriCom Indemnified Persons' Agent shall constitute notice to or from
each of the SymmetriCom Indemnified Persons. A decision, act, consent or
instruction of the SymmetriCom Indemnified Persons' Agent shall constitute the
decision, act, consent or instruction of all the SymmetriCom Indemnified Persons
and shall be final, binding and conclusive upon each of such SymmetriCom
Indemnified Persons, and Purchaser and the Escrow Agent (as such term is defined
in the Escrow Agreement) may rely upon any such decision, act, consent or
instruction of the SymmetriCom Indemnified Persons' Agent as being the decision,
act, consent or instruction of each SymmetriCom Indemnified Person,
notwithstanding any notice to the contrary from any SymmetriCom Indemnified
Person. Purchaser and the Escrow Agent are hereby relieved from any liability to
any SymmetriCom Indemnified Person for any acts done by them in accordance with
such decision, act, consent or instruction of the SymmetriCom Indemnified
Persons' Agent.

                                   ARTICLE X

                                 MISCELLANEOUS

     SECTION 10.01     Entire Agreement; Assignment
     ----------------------------------------------

     .

                (a)  This Agreement, including the Exhibits and Schedules
hereto, and the other documents and certificates delivered pursuant to the terms
of this Agreement, set forth the entire agreement and understanding of the
parties hereto in respect of the subject matter contained herein, and supersede
all prior agreements, promises, covenants, arrangements, communications,

                                      -48-
<PAGE>
 
representations or warranties, whether oral or written, by any officer, employee
or representative of any party hereto.

                (b)  Neither this Agreement nor any of the rights, interests or
obligations hereunder will be assigned by any of the parties hereto (whether by
operation of law or otherwise) without the prior written consent of the other
party (except that Purchaser may assign its rights and Purchaser may assign its
rights, interest and obligations to any affiliate or direct or indirect
subsidiary of Purchaser without the consent of the Company). Subject to the
preceding sentence, this Agreement will be binding upon, inure to the benefit of
and be enforceable by the parties and their respective successors and assigns.

     SECTION 10.02     Validity
     --------------------------

     .  The invalidity or unenforceability of any provision of this Agreement
shall not affect the validity or enforceability of any other provision of this
Agreement, each of which shall remain in full force and effect.

     SECTION 10.03     Notices
     -------------------------

     .  All notices, requests, claims, demands and other communications
hereunder shall be in writing and shall be deemed to have been duly given when
delivered in person, by overnight courier or facsimile to the respective parties
as follows:

     If to Purchaser or Purchaser Sub:

               Microsemi Corporation
               2870 S. Fairview Street
               Santa Ana, CA  92704
               Attn:  Philip Frey, Jr.

     with a copy to:

               Stradling Yocca Carlson & Rauth
               660 Newport Center Drive
               Suite 1600
               Newport Beach, CA  92660-6441
               Attn:  Nicholas Yocca, Jr.

     If to SymmetriCom:

               SymmetriCom, Inc.
               2300 Orchard Parkway
               San Jose, California  95131-1017
               Attention:  Mary Rorabaugh

                                      -49-
<PAGE>
 
     If to the Company:

               Linfinity Microelectronics Inc.
               11861 Western Avenue
               Garden Grove, California  92841-2119
               Attention:  Jim Peterson

     with a copy to:

               Wilson Sonsini Goodrich & Rosati, P.C.
               650 Page Mill Road
               Palo Alto, California  94304-1050
               Attention: Francis S. Currie, Esq.

or to such other address as the person to whom notice is given may have
previously furnished to the other in writing in the manner set forth above
(provided that notice of any change of address shall be effective only upon
receipt thereof).

     SECTION 10.04     Governing Law
     -------------------------------

     .  This Agreement shall be governed by and construed in accordance with the
laws of the State of California, regardless of the laws that might otherwise
govern under applicable principles of conflicts of laws thereof.

     SECTION 10.05     Consent to Jurisdiction; Waiver of Immunities
     ---------------------------------------------------------------

     .  The Company, SymmetriCom, Purchaser and Purchaser Sub irrevocably submit
to the jurisdiction of any California state or federal court thereof in any
action or proceeding arising out of or relating to this Agreement, and the
Company, SymmetriCom, Purchaser and Purchaser Sub hereby irrevocably agree that
all claims in respect of such action or proceeding may be heard and determined
in such California court or in such federal court.  The Company, SymmetriCom,
Purchaser and Purchaser Sub agree that a final judgment in any such action or
proceeding shall be conclusive and may be enforced in other jurisdictions by
suit on the judgment or in any other manner provided by law.

     SECTION 10.06     Descriptive Headings
     --------------------------------------

     .  The descriptive headings and captions herein are inserted for
convenience of reference only and are not intended to be part of or to affect
the meaning or interpretation of this Agreement.

     SECTION 10.07     Counterparts
     ------------------------------

     .  This Agreement may be executed in two or more counterparts, each of
which shall be deemed to be an original, but all of which shall constitute one
and the same agreement.

                                      -50-
<PAGE>
 
     SECTION 10.08     Parties in Interest
     -------------------------------------

     .  This Agreement shall be binding upon and inure solely to the benefit of
each party hereto, and, except with respect to Section 1.09, nothing in this
Agreement, express or implied, is intended to confer upon any other person any
rights or remedies of any nature whatsoever under or by reason of this
Agreement.
 
     SECTION 10.09     Certain Definitions
     -------------------------------------

     .  As used in this Agreement:

                (a)  the term "Affiliate," as applied to any person, shall mean
any other person directly or indirectly controlling, controlled by, or under
common control with, that person. For the purposes of this definition, "control"
(including, with correlative meanings, the terms "controlling," "controlled by"
and "under common control with"), as applied to any person, means the
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of that person, whether through the
ownership of voting securities, by contract or otherwise;

                (b)  the term "Person" shall include individuals, corporations,
partnerships, trusts, other entities and groups (which term shall include a
"group" as such term is defined in Section 13(d)(3) of the Exchange Act); and

                (c)  the term "Subsidiary", "Subsidiaries" or "subsidiaries"
means, with respect to Purchaser, the Company or any other person, any
corporation, partnership, joint venture or other legal entity of which
Purchaser, the Company or such other person, as the case may be (either alone or
through or together with any other subsidiary), owns, directly or indirectly,
stock or other equity interests the holders of which are generally entitled to
more than 50% of the vote for the election of the board of directors or other
governing body of such corporation or other legal entity.
 
     SECTION 10.10     Specific Performance
     --------------------------------------

     .  The parties hereto agree that irreparable damage would occur in the
event that any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached. It is
accordingly agreed that the parties shall be entitled to an injunction or
injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions hereof in any court of the United States or any state
having jurisdiction, this being in addition to any other remedy to which they
are entitled at law or in equity.

     SECTION 10.11     Arbitration
     -----------------------------

     .  Each party for itself expressly (i) waives any rights to a trial by jury
in any action or proceeding to enforce or defend any matter arising from or
related to this Agreement; (ii) irrevocably submits to the jurisdiction of any
professional arbitration service in Orange County, California, over any such
action or proceeding; (iii) irrevocably waives the defense of an inconvenient
forum or 

                                      -51-
<PAGE>
 
improper venue to the maintenance of such action or proceeding; (iv) agrees that
an award in any such action or proceeding shall be final, non-appealable,
binding and conclusive and may be enforced in any other jurisdiction by suit on
the judgment or in any other manner provided by law; (v) agrees not to institute
any legal action or proceeding against a party or its directors, officers,
employees, agents or property concerning any matter arising out of or relating
to this Agreement in any court or forum other than in an arbitration before such
professional arbitration service in Orange County, California; and (vi) agrees
to accept and not to contest service of process by certified mail in such
actions, which method of service is deemed adequate by the parties hereto.
Except as expressly modified herein, the parties are authorized in such
arbitration proceedings to conduct discovery in accordance with the California
Code of Civil Procedure (S)(S) 1280 et seq. The parties shall submit a proposed
discovery plan to the arbitrator, and the scope and duration of discovery will
be within the sole discretion of the arbitrator. The parties expressly waive
their appeal rights under California Code of Civil Procedure (S) 1294(b), (c)
and (d). The arbitrator shall include in the award an assessment of the expense
and cost of the arbitration, in addition to the attorneys' fees and costs as
provided elsewhere in this Agreement, to the prevailing party or parties (and
against either or both of the parties). The arbitrator shall give a detailed
reasoned opinion.

                                 *  *  *  *  *

                                      -52-
<PAGE>
 
     IN WITNESS WHEREOF, each of the parties has caused this Agreement and Plan
of Reorganization to be executed on its behalf by its respective officer
thereunto duly authorized on this 10th day of February, 1999.


Microsemi Corporation

By:  /s/ Philip Frey, Jr.
     ____________________________
Name: Philip Frey, Jr.
      ___________________________
Title: President                 
       __________________________
Date: February 10, 1999          
      ___________________________


Micro-Linfinity Acquisition Corporation


By: /s/ Philip Frey, Jr.
     ____________________________
Name: Philip Frey, Jr.           
      ___________________________
Title: President                 
       __________________________
Date: February 10, 1999          
      ___________________________


Linfinity Microelectronics Inc.


By: /s/ Mary Rorabaugh 
     _________________________________
Name: Mary Rorabaugh                  
      ________________________________
Title: Director                       
       _______________________________
Date: February 10, 1999               
      ________________________________


SymmetriCom, Inc.
By: /s/ Thomas W. Steipp 
     _______________________________________
Name: Thomas W. Steipp                      
      ______________________________________
Title: President and Chief Executive Officer
       _____________________________________
Date: February 10, 1999                     
      ______________________________________


           [SIGNATURE PAGE TO AGREEMENT AND PLAN OF REORGANIZATION]


                                    -53-

<PAGE>
 
                                                                  EXHIBIT 99.3

                                                               Investor contact:
                                                                     Ed Lockwood
                                                                     Symmetricom
                                                                  (408) 428-7845
                                                       [email protected]


                   SYMMETRICOM ANNOUNCES AGREEMENT TO SELL
             LINFINITY MICROELECTRONICS TO MICROSEMI CORPORATION
                                        
SAN JOSE, California -- February 11, 1999 -- Symmetricom (NASDAQ: SYMM)
announced today that it has signed a definitive agreement to sell its Linfinity
Microelectronics Inc. Subsidiary to Microsemi Corporation (NASDAQ: MSCC). The
transaction is expected to close by the end of the current quarter.

Under the agreement, Microsemi will purchase all of the outstanding equity in
Linfinity Microelectronics for approximately $24.1 million in cash, of which
approximately $1.1 million is subject to an escrow agreement. Symmetricom also
stated it expects to report a net after-tax loss related to the transaction of
up to $4.0 million, or $0.26 cents per basic share.

This transaction, which concludes Symmetricom's previously announced efforts to
secure a strategic partnership for Linfinity Microelectronics, enables the
company to focus on its network synchronization, timing and location business.

Symmetricom (NASDAQ: SYMM) provides advanced network synchronization products
that play a critical role in the operation and quality of service of
sophisticated telecommunications networks. Symmetricom's synchronization and
timing equipment is installed in telecommunications offices in over 50 countries
worldwide. Global customers include network operators and network service
providers. The Company is developing products based on its proprietary Global
Positioning System (GPS), BesTime(TM) intelligent clock, and PowerHelix(TM)
antenna technologies to address synchronization, timing and location needs of
global communications markets.

This press release contains forward-looking information within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended, and is subject to the safe harbor
created by those sections. The Company's actual results could differ materially
from those projected in the forward-looking information. Some factors which
could cause future actual results to differ materially from the Company's
projected results in the forward-looking information include whether the
acquisition will be consummated as anticipated, and the risk factors listed from
time to time in the company's reports, on file with the Securities and Exchange
Commission, including but not limited to, the report on Form 10-K for the year
ended June 30, 1998, and the report on Form 10-Q for the quarter ended December
31, 1998.


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