MICROTUNE INC
S-1/A, EX-1.1, 2000-07-17
SEMICONDUCTORS & RELATED DEVICES
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                                                                     EXHIBIT 1.1

                                MICROTUNE, INC.

                                 Common Stock


                               -----------------


                             Underwriting Agreement
                             ----------------------

                                                                August ___, 2000
Goldman, Sachs & Co.,
Chase Securities Inc.
SG Cowen Securities Corporation
Bear, Stearns & Co. Inc.
As the representative of the several Underwriters
   named in Schedule I hereto,
c/o Goldman, Sachs & Co.
85 Broad Street
New York, New York  10004

Ladies and Gentlemen:

     Microtune, Inc., a Delaware corporation (the "Company"), proposes, subject
to the terms and conditions stated herein, to issue and sell to the Underwriters
named in Schedule I hereto (the "Underwriters") an aggregate of 4,000,000 shares
(the "Firm Shares") and, at the election of the Underwriters, up to 600,000
additional shares (the "Optional Shares") of Common Stock ("Stock") of the
Company.  The Firm Shares and the Optional Shares that the Underwriters elect to
purchase pursuant to Section 2 hereof are herein collectively called the
"Shares".

     1.  The Company represents and warrants to, and agrees with, each of the
Underwriters that:

         (a) A registration statement on Form S-1 (File No. 333-36340) (the
     "Initial Registration Statement") in respect of the Shares has been filed
     with the Securities and Exchange Commission (the "Commission"); the Initial
     Registration Statement and any post-effective amendment thereto, each in
     the form heretofore delivered to you, and, excluding exhibits thereto, to
     you for each of the other Underwriters, have been declared effective by the
     Commission in such form; other than a registration statement, if any,
     increasing the size of the offering (a "Rule 462(b) Registration
     Statement"), filed pursuant to Rule 462(b) under the Securities Act of
     1933, as amended (the "Act"), which became effective upon filing, no other
     document with respect to the Initial Registration Statement has heretofore
     been filed with the Commission; and no stop order suspending the
     effectiveness of the Initial Registration Statement, any post-effective
     amendment thereto or the Rule 462(b) Registration Statement, if any, has
     been issued and no proceeding for that purpose has been initiated or, to
     the knowledge of the Company, threatened by the Commission (any preliminary
     prospectus included in the Initial Registration Statement or filed with the
     Commission pursuant to Rule 424(a) of the rules and regulations of the
     Commission under the Act is hereinafter called a "Preliminary Prospectus";
     the various parts of the Initial Registration Statement and the Rule 462(b)
     Registration Statement, if any, including all exhibits thereto and
     including the information contained in the form of final prospectus filed
     with the Commission pursuant to Rule 424(b) under the Act
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     in accordance with Section 5(a) hereof and deemed by virtue of Rule 430A
     under the Act to be part of the Initial Registration Statement at the time
     it was declared effective, each as amended at the time such part of the
     Initial Registration Statement became effective or such part of the Rule
     462(b) Registration Statement, if any, became or hereafter becomes
     effective, are hereinafter collectively called the "Registration
     Statement"; and such final prospectus, in the form first filed pursuant to
     Rule 424(b) under the Act, is hereinafter called the "Prospectus";

        (b) No order preventing or suspending the use of any Preliminary
     Prospectus has been issued by the Commission, and each Preliminary
     Prospectus, at the time of filing thereof, conformed in all material
     respects to the requirements of the Act and the rules and regulations of
     the Commission thereunder, and did not contain an untrue statement of a
     material fact or omit to state a material fact required to be stated
     therein or necessary to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided,
     however, that this representation and warranty shall not apply to any
     statements or omissions made in reliance upon and in conformity with
     information furnished in writing to the Company by an Underwriter through
     Goldman, Sachs & Co. expressly for use therein;

        (c) The Registration Statement conforms, and the Prospectus and any
     further amendments or supplements to the Registration Statement or the
     Prospectus will conform, in all material respects to the requirements of
     the Act and the rules and regulations of the Commission thereunder and do
     not and will not, as of the applicable effective date as to the
     Registration Statement and any amendment thereto and as of the applicable
     filing date as to the Prospectus and any amendment or supplement thereto,
     contain an untrue statement of a material fact or omit to state a material
     fact required to be stated therein or necessary to make the statements
     therein not misleading; provided, however, that this representation and
     warranty shall not apply to any statements or omissions made in reliance
     upon and in conformity with information furnished in writing to the Company
     by an Underwriter through Goldman, Sachs & Co. expressly for use therein;

        (d) Neither the Company nor any of its subsidiaries has sustained since
     the date of the latest audited financial statements included in the
     Prospectus any material loss or interference with its business from fire,
     explosion, flood or other calamity, whether or not covered by insurance, or
     from any labor dispute or court or governmental action, order or decree,
     otherwise than as set forth or contemplated in the Prospectus; and, since
     the respective dates as of which information is given in the Registration
     Statement and the Prospectus, there has not been any material change in the
     capital stock or long-term debt of the Company or any of its subsidiaries
     or any material adverse change, or any development involving a prospective
     material adverse change, in or affecting the general affairs, management,
     financial position, stockholders' equity or results of operations of the
     Company and its subsidiaries, otherwise than as set forth or contemplated
     in the Prospectus;

        (e) The Company and its subsidiaries (a) do not own any real property
     and (b) have good and marketable title to all personal property owned by
     them, in each case free and clear of all liens, encumbrances and defects
     except such as are described in the Prospectus or such as do not materially
     affect the value of such property and do not interfere with the use made
     and proposed to be made of such property by the Company and its
     subsidiaries; and any real property and buildings held under lease by the
     Company and its subsidiaries are held by them under valid, subsisting and
     enforceable leases with such exceptions as are not material and do not
     interfere with the use made and proposed to be made of such property and
     buildings by the Company and its subsidiaries;

        (f) The Company has been duly incorporated and is validly existing as a
     corporation in good standing under the laws of the State of Delaware, with
     power and authority

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     (corporate and other) to own its properties and conduct its business as
     described in the Prospectus, and has been duly qualified as a foreign
     corporation for the transaction of business and is in good standing under
     the laws of each other jurisdiction in which it owns or leases properties
     or conducts any business so as to require such qualification, or is subject
     to no material liability or disability by reason of the failure to be so
     qualified in any such jurisdiction; and each subsidiary of the Company has
     been duly incorporated or organized and is validly existing as a
     corporation or limited liability corporation in good standing under the
     laws of its jurisdiction of incorporation or organization;

        (g) The Company has an authorized capitalization as set forth in the
     Prospectus, and all of the issued shares of capital stock of the Company
     have been duly and validly authorized and issued, are fully paid and non-
     assessable and conform to the description of the Stock contained in the
     Prospectus; and all of the issued shares of capital stock of each
     subsidiary of the Company have been duly and validly authorized and issued,
     are fully paid and non-assessable and (except for directors' qualifying
     shares) are owned directly or indirectly by the Company, free and clear of
     all liens, encumbrances, equities or claims except for such liens and
     encumbrances that are incurred in the ordinary course and as would not have
     a material adverse effect on the general affairs, management, or current or
     future financial condition, stockholders' equity or results of operations
     of the Company and its subsidiaries, taken as a whole ("Material Adverse
     Effect");

        (h) The Shares have been duly and validly authorized and, when issued
     and delivered against payment therefor as provided herein, will be duly and
     validly issued and fully paid and non-assessable and will conform to the
     description of the Stock contained in the Prospectus;

        (i) The issue and sale of the Shares to be sold by the Company and the
     compliance by the Company with all of the provisions of this Agreement and
     the consummation of the transactions herein contemplated will not conflict
     with or result in a breach or violation of any of the terms or provisions
     of, or constitute a default under, any indenture, mortgage, deed of trust,
     loan agreement or other agreement or instrument to which the Company or any
     of its subsidiaries is a party or by which the Company or any of its
     subsidiaries is bound or to which any of the property or assets of the
     Company or any of its subsidiaries is subject, nor will such action result
     in any violation of the provisions of the Certificate of Incorporation or
     By-laws of the Company or any statute or any order, rule or regulation of
     any court or governmental agency or body having jurisdiction over the
     Company or any of its subsidiaries or any of their properties and except in
     any case for such conflicts, breaches, violations or defaults that would
     not individually or in the aggregate have a Material Adverse Effect; and no
     consent, approval, authorization, order, registration or qualification of
     or with any such court or governmental agency or body is required for the
     issue and sale of the Shares or the consummation by the Company of the
     transactions contemplated by this Agreement, except (i) the registration
     under the Act of the Shares (ii) the approval by the National Association
     of Securities Dealers, Inc. ("NASD") of the terms of the sale of the
     Shares, and (iii) such consents, approvals, authorizations, registrations
     or qualifications as may be required under state securities or Blue Sky
     laws in connection with the purchase and distribution of the Shares by the
     Underwriters;

        (j) Neither the Company nor any of its subsidiaries is (A) in violation
     of its Certificate of Incorporation or By-laws or (B) in default in the
     performance or observance of any material obligation, agreement, covenant
     or condition contained in any indenture, mortgage, deed of trust, loan
     agreement, lease or other agreement or instrument to which it is a party or
     by which it or any of its properties may be bound and except in the case of
     this clause (B) for such conflicts, breaches, violations or defaults that
     would not individually or in the aggregate have a Material Adverse Effect;

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        (k) The statements set forth in the Prospectus under the caption
     "Description of Capital Stock", insofar as they purport to constitute a
     summary of the terms of the Stock, and under the caption "Underwriting",
     insofar as they purport to describe the provisions of the laws and
     documents referred to therein, are accurate and complete summaries and
     descriptions of such provisions in all material respects;

        (l) Other than as set forth in the Prospectus, there are no legal or
     governmental proceedings pending to which the Company or any of its
     subsidiaries is a party or of which any property of the Company or any of
     its subsidiaries is the subject which, if determined adversely to the
     Company or any of its subsidiaries, would individually or in the aggregate
     have a Material Adverse Effect and, to the Company's knowledge, no such
     proceedings are threatened or contemplated by governmental authorities or
     threatened by others, except for such proceedings that would not
     individually or in the aggregate have a Material Adverse Effect;

        (m) The Company is not and, after giving effect to the offering and sale
     of the Shares, will not be an "investment company", as such term is defined
     in the Investment Company Act of 1940, as amended (the "Investment Company
     Act");

        (n) Neither the Company nor any of its affiliates does business with the
     government of Cuba or with any person or affiliate located in Cuba within
     the meaning of Section 517.075, Florida Statutes;

        (o) Ernst and Young, L.L.P., who have certified certain financial
     statements of the Company and its subsidiaries, are independent public
     accountants as required by the Act and the rules and regulations of the
     Commission thereunder;

        (p) The Company has not violated any foreign, federal, state or local
     law or regulation relating to the protection of human health and safety,
     the environment or hazardous or toxic substances or wastes, pollutants or
     contaminants, any provisions of the Employee Retirement Income Security Act
     of 1974, as amended, or any provisions of the Foreign Corrupt Practices
     Act, or the rules and regulations promulgated thereunder, except for such
     violations that, singly or in the aggregate, would not have a Material
     Adverse Effect.

        (q) The Company, together with one or more of its subsidiaries (i) owns
     or possesses all necessary licenses or other rights to use all patents,
     patent applications, patent rights, inventions, trademarks, trademark
     applications, service marks, service mark applications, tradenames,
     copyrights, manufacturing processes, formulae, trade secrets, know-how,
     franchises, and other material intangible property and assets (collectively
     "Intellectual Property") used in the conduct of its business as currently
     conducted and as proposed to be conducted as described in the Prospectus or
     (ii) has no knowledge that it will be unable to obtain or retain any rights
     or licenses to use any of the Intellectual Property necessary to conduct
     the business now conducted or proposed to be conducted by it as described
     in the Prospectus, except as described in the Prospectus or as would not
     individually or in the aggregate have a Material Adverse Effect. To the
     best knowledge of the Company, none of the patents owned by are
     unenforceable or invalid except where such unenforceability or invalidity
     would not have a Material Adverse Effect. The Company has not received any
     notice of, and has no knowledge of, any infringement or conflict with
     asserted rights or claims of others with respect to any Intellectual
     Property of the Company's products, processes or technologies which, singly
     or in the aggregate, if the subject of an unfavorable decision, ruling or
     finding, might have a Material Adverse Effect on the Company. The Company
     has not received any notice of, and has no knowledge of, any infringement
     of or conflict with asserted rights of the Company by others with respect
     to any Intellectual Property. The Company has duly and properly

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filed or caused to be filed with the United States Patent and Trademark Office
(the "PTO") and applicable foreign and international patent authorities all
patent applications described or referred to in the Prospectus, and believes it
has complied in all material respects with the PTO's duty of candor and
disclosure for each of the United States patent applications described or
referred to in the Prospectus. The Company has no knowledge of any facts which
would preclude the grant of a patent from each of the patent applications
described or referred to in the Prospectus. After due inquiry, the Company has
no knowledge of any adverse claim to title to its patents and patent
applications described or referred to in the Prospectus, free and clear of any
pledges, liens, security interests, charges, encumbrances, claims, equitable
interests, or restrictions. The Prospectus contains accurate and complete
summaries of the Company's rights with respect to the Intellectual Property.

        (r) The execution and delivery of the Agreement and Plan of Merger dated
June 9, 2000 (the "Plan of Merger") by and between the Company and Microtune,
Inc., a Texas corporation ("Microtune Texas"), and Microtune Merger Corporation,
a Delaware corporation ("MMC"), has been duly authorized by all corporate action
on the part of the Company, Microtune Texas and MMC. Each of the Company,
Microtune Texas and MMC had full corporate power and authority necessary to
execute and deliver the Plan of Merger, to execute and file the Articles of
Merger with the Secretary of State of the State of Texas and the Certificate of
Merger with the Secretary of State of Delaware and to consummate the
reincorporation contemplated by the Plan of Merger, and the Plan of Merger at
the time of execution and immediately prior to the effectiveness of the Merger
constituted a valid and binding obligation of each of the Company, Microtune
Texas and MMC, subject to the effect of (x) applicable bankruptcy, insolvency,
reorganization, moratorium or other similar federal or state laws affecting the
rights of creditors and (y) to general principles of equity. The execution and
delivery of the Plan of Merger and the consummation of the merger contemplated
thereby (the "Merger") did not contravene any provision of Texas or Delaware
corporate law or the Certificate of Incorporation or Bylaws of the Company, the
Articles of Incorporation or Bylaws of Microtune Texas or the Certificate of
Incorporation or Bylaws of MMC, except for any such contravention that would not
have a Material Adverse Effect on the Company. The Merger is effective under the
laws of the State of Texas and the State of Delaware.

     2.  Subject to the terms and conditions herein set forth, (a) the Company
agrees, to sell to each of the Underwriters, and each of the Underwriters
agrees, severally and not jointly, to purchase from the Company at a purchase
price per share of $________, the number of Firm Shares set forth opposite the
name of such Underwriter in Schedule I hereto and (b) in the event and to the
extent that the Underwriters shall exercise the election to purchase Optional
Shares as provided below, the Company agrees to sell to each of the
Underwriters, and each of the Underwriters agrees, severally and not jointly, to
purchase from the Company, at the purchase price per share set forth in clause
(a) of this Section 2, that portion of the number of Optional Shares as to which
such election shall have been exercised (to be adjusted by you so as to
eliminate fractional shares) determined by multiplying such number of Optional
Shares by a fraction the numerator of which is the maximum number of Optional
Shares which such Underwriter is entitled to purchase as set forth opposite the
name of such Underwriter in Schedule I hereto and the denominator of which is
the maximum number of Optional Shares that all of the Underwriters are entitled
to purchase hereunder.

     The Company hereby grants to the Underwriters the right to purchase at
their election up to 600,000 Optional Shares, at the purchase price per share
set forth in the paragraph above, for the sole purpose of covering sales of
shares in excess of the number of Firm Shares.  Any such election to purchase
Optional Shares may be exercised only by written notice from you to the Company,
given within a period of 30 calendar days after the date of this Agreement and
setting forth the aggregate

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number of Optional Shares to be purchased and the date on which such Optional
Shares are to be delivered, as determined by you but in no event earlier than
the First Time of Delivery (as defined in Section 4 hereof) or, unless you and
the Company otherwise agree in writing, earlier than two or later than ten
business days after the date of such notice.

     3.  Upon the authorization by you of the release of the Firm Shares, the
several Underwriters propose to offer the Firm Shares for sale upon the terms
and conditions set forth in the Prospectus.

     4.  (a)  The Shares to be purchased by each Underwriter hereunder, in
definitive form, and in such authorized denominations and registered in such
names as Goldman, Sachs & Co. may request upon at least forty-eight hours' prior
notice to the Company shall be delivered by or on behalf of the Company to
Goldman, Sachs & Co., through the facilities of the Depository Trust Company
("DTC") for the account of such Underwriter, against payment by or on behalf of
such Underwriter of the purchase price therefor by wire transfer of Federal
(same-day) funds to the account specified by the Company  to Goldman, Sachs &
Co. at least forty-eight hours in advance.  The Company will cause the
certificates representing the Shares to be made available for checking and
packaging at least twenty-four hours prior to the Time of Delivery (as defined
below) with respect thereto at the office of DTC or its designated custodian
(the "Designated Office").  The time and date of such delivery and payment shall
be, with respect to the Firm Shares, 9:30 a.m., New York time, on ________, 2000
or such other time and date as Goldman, Sachs & Co. and, the Company  may agree
upon in writing, and, with respect to the Optional Shares, 9:30 a.m., New York
time, on the date specified by Goldman, Sachs & Co. in the written notice given
by Goldman, Sachs & Co. of the Underwriters' election to purchase such Optional
Shares, or such other time and date as Goldman, Sachs & Co. and the Company may
agree upon in writing.  Such time and date for delivery of the Firm Shares is
herein called the "First Time of Delivery", such time and date for delivery of
the Optional Shares, if not the First Time of Delivery, is herein called the
"Second Time of Delivery", and each such time and date for delivery is herein
called a "Time of Delivery".

     (b) The documents to be delivered at each Time of Delivery by or on behalf
of the parties hereto pursuant to Section 7 hereof, including the cross receipt
for the Shares and any additional documents requested by the Underwriters
pursuant to Section 7 hereof, will be delivered at the offices of Wilson Sonsini
Goodrich & Rosati, 8911 Capital of Texas Highway, Westech 360, Suite 3350,
Austin, Texas 78759 (the "Closing Location"), and the Shares will be delivered
at the Designated Office, all at such Time of Delivery.  A meeting will be held
at the Closing Location at ______ p.m., New York City time, on the New York
Business Day next preceding such Time of Delivery, at which meeting the final
drafts of the documents to be delivered pursuant to the preceding sentence will
be available for review by the parties hereto.  For the purposes of this Section
4, "New York Business Day" shall mean each Monday, Tuesday, Wednesday, Thursday
and Friday which is not a day on which banking institutions in New York are
generally authorized or obligated by law or executive order to close.

     5.  The Company agrees with each of the Underwriters:

     (a) To prepare the Prospectus in a form approved by you and to file such
Prospectus pursuant to Rule 424(b) under the Act not later than the Commission's
close of business on the second business day following the execution and
delivery of this Agreement, or, if applicable, such earlier time as may be
required by Rule 430A(a)(3) under the Act; to make no further amendment or any
supplement to the Registration Statement or Prospectus which shall be
disapproved by you promptly after reasonable notice thereof; to advise you,
promptly after it receives notice thereof, of the time when any amendment to the
Registration Statement has been filed or becomes effective or any supplement to
the Prospectus or any amended prospectus has been filed and to furnish you with
copies thereof; to advise you, promptly after it receives notice thereof, of the

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issuance by the Commission of any stop order or of any order preventing or
suspending the use of any Preliminary Prospectus or prospectus, of the
suspension of the qualification of the Shares for offering or sale in any
jurisdiction, of the initiation or threatening of any proceeding for any such
purpose, or of any request by the Commission for the amending or supplementing
of the Registration Statement or Prospectus or for additional information; and,
in the event of the issuance of any stop order or of any order preventing or
suspending the use of any Preliminary Prospectus or prospectus or suspending any
such qualification, promptly to use its best efforts to obtain the withdrawal of
such order;

     (b) Promptly from time to time to take such action as you may reasonably
request to qualify the Shares for offering and sale under the securities laws of
such jurisdictions as you may request and to comply with such laws so as to
permit the continuance of sales and dealings therein in such jurisdictions for
as long as may be necessary to complete the distribution of the Shares, provided
that in connection therewith the Company shall not be required to qualify as a
foreign corporation or to file a general consent to service of process in any
jurisdiction;

     (c) Prior to 10:00 A.M., New York City time, on the New York Business Day
next succeeding the date of this Agreement and from time to time, to furnish the
Underwriters with copies of the Prospectus in New York City in such quantities
as you may reasonably request, and, if the delivery of a prospectus is required
at any time prior to the expiration of nine months after the time of issue of
the Prospectus in connection with the offering or sale of the Shares and if at
such time any events shall have occurred as a result of which the Prospectus as
then amended or supplemented would include an untrue statement of a material
fact or omit to state any material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were made
when such Prospectus is delivered, not misleading, or, if for any other reason
it shall be necessary during such period to amend or supplement the Prospectus
in order to comply with the Act, to notify you and upon your request to prepare
and furnish without charge to each Underwriter and to any dealer in securities
as many copies as you may from time to time reasonably request of an amended
Prospectus or a supplement to the Prospectus which will correct such statement
or omission or effect such compliance, and in case any Underwriter is required
to deliver a prospectus in connection with sales of any of the Shares at any
time nine months or more after the time of issue of the Prospectus, upon your
request but at the expense of such Underwriter, to prepare and deliver to such
Underwriter as many copies as you may request of an amended or supplemented
Prospectus complying with Section 10(a)(3) of the Act;

     (d) To make generally available to its securityholders as soon as
practicable, but in any event not later than eighteen months after the effective
date of the Registration Statement (as defined in Rule 158(c) under the Act), an
earnings statement of the Company and its subsidiaries (which need not be
audited) complying with Section 11(a) of the Act and the rules and regulations
of the Commission thereunder (including, at the option of the Company, Rule
158);

     (e) During the period beginning from the date hereof and continuing to and
including the date 180 days after the date of the Prospectus, not to offer,
sell, contract to sell or otherwise dispose of, except as provided hereunder,
any securities of the Company that are substantially similar to the Shares,
including but not limited to any securities that are convertible into or
exchangeable for, or that represent the right to receive, Stock or any such
substantially similar securities (other than pursuant to employee stock option
plans existing on, or upon the conversion or exchange of convertible or
exchangeable securities outstanding as of, the date of this Agreement), without
your prior written

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consent; except that the Company may issue such securities in exchange for all
of the equity or substantially all of the equity or assets of another person in
connection with a merger or acquisition, provided that prior to any such
issuance the recipients of such securities shall have agreed with Goldman, Sachs
& Co. in writing to be bound by the same form of agreement specified in Section
7(j) hereof and provided, further, that the aggregate number of shares issuable
by the Company in all such acquisition transactions shall not exceed the
equivalent of 2,500,000 shares of Common Stock, subject to adjustment to reflect
stock splits, stock dividends, reclassifications, recombinations and other
similar adjustments. "Person" is defined as any individual, partnership,
corporation, trust, joint venture or other similar entity;

     (f) To furnish to its stockholders as soon as practicable after the end of
each fiscal year an annual report (including a balance sheet and statements of
income, stockholders' equity and cash flows of the Company and its consolidated
subsidiaries certified by independent public accountants) and, as soon as
practicable after the end of each of the first three quarters of each fiscal
year (beginning with the fiscal quarter ending after the effective date of the
Registration Statement), to make available to its stockholders consolidated
summary financial information of the Company and its subsidiaries for such
quarter in reasonable detail;

     (g) During a period of five years from the effective date of the
Registration Statement, to furnish to you copies of all reports or other
communications (financial or other) furnished to stockholders, and to deliver to
you (i) as soon as they are available, copies of any reports and financial
statements furnished to or filed with the Commission or any national securities
exchange on which any class of securities of the Company is listed; and (ii)
such additional information concerning the business and financial condition of
the Company as you may from time to time reasonably request (such financial
statements to be on a consolidated basis to the extent the accounts of the
Company and its subsidiaries are consolidated in reports furnished to its
stockholders generally or to the Commission);

     (h) To use the net proceeds received by it from the sale of the Shares
pursuant to this Agreement in the manner specified in the Prospectus under the
caption "Use of Proceeds"; and

     (i) To use its best efforts to list for quotation the Shares on the
National Association of Securities Dealers Automated Quotations National Market
System ("NASDAQ"); and

     (j) To file with the Commission such information on Form 10-Q or Form 10-K
as may be required by Rule 463 under the Act; and

     (k) If the Company elects to rely upon Rule 462(b), the Company shall file
a Rule 462(b) Registration Statement with the Commission in compliance with Rule
462(b) by 10:00 P.M., Washington, D.C. time, on the date of this Agreement, and
the Company shall at the time of filing either pay to the Commission the filing
fee for the Rule 462(b) Registration Statement or give irrevocable instructions
for the payment of such fee pursuant to Rule 111(b) under the Act.

     6.  The Company covenants and agrees with the several Underwriters that (a)
the Company  will pay or cause to be paid  the following: (i) the fees,
disbursements and expenses of the Company's counsel and accountants in
connection with the registration of the Shares under the Act and all other
expenses in connection with the preparation, printing and filing of the
Registration Statement, any Preliminary Prospectus and the Prospectus and
amendments and supplements thereto and the mailing and delivering of copies
thereof to the Underwriters and dealers; (ii) the cost of printing or producing
any Agreement among Underwriters, this Agreement, the Blue Sky Memorandum,
closing documents (including any compilations thereof) and any other documents
in connection with the

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offering, purchase, sale and delivery of the Shares; (iii) all reasonable
expenses in connection with the qualification of the Shares for offering and
sale under state securities laws as provided in Section 5(b) hereof, including
the fees and disbursements of counsel for the Underwriters in connection with
such qualification and in connection with the Blue Sky survey; (iv) all fees and
expenses in connection with listing the Shares on the NASDAQ; and the filing
fees incident to, and the reasonable fees and disbursements of counsel for the
Underwriters in connection with, securing any required review by the National
Association of Securities Dealers, Inc. of the terms of the sale of the Shares;
(v) the cost of preparing stock certificates; (vi) the cost and charges of any
transfer agent or registrar and (vii) all other costs and expenses incident to
the performance of its obligations hereunder which are not otherwise
specifically provided for in this Section and that, except as provided in this
Section, and Sections 8 and 11 hereof, the Underwriters will pay all of their
own costs and expenses, including the fees of their counsel, stock transfer
taxes on resale of any of the Shares by them, and any advertising expenses
connected with any offers they may make.

     7.  The obligations of the Underwriters hereunder, as to the Shares to be
delivered at each Time of Delivery, shall be subject, in their discretion, to
the condition that all representations and warranties and other statements of
the Company herein are, at and as of such Time of Delivery, true and correct,
the condition that the Company shall have performed all of its obligations
hereunder theretofore to be performed, and the following additional conditions:

     (a) The Prospectus shall have been filed with the Commission pursuant to
Rule 424(b) within the applicable time period prescribed for such filing by the
rules and regulations under the Act and in accordance with Section 5(a) hereof;
if the Company has elected to rely upon Rule 462(b), the Rule 462(b)
Registration Statement shall have become effective by 10:00 P.M., Washington,
D.C. time, on the date of this Agreement; no stop order suspending the
effectiveness of the Registration Statement or any part thereof shall have been
issued and no proceeding for that purpose shall have been initiated or
threatened by the Commission; and all requests for additional information on the
part of the Commission shall have been complied with to your reasonable
satisfaction;

     (b) Brobeck, Phleger & Harrison LLP, counsel for the Underwriters, shall
have furnished to you such written opinion or opinions (a draft of each such
opinion is attached as Annex II(a) hereto), dated such Time of Delivery, with
respect to the matters covered in paragraphs (i), (ii), (vi), (x), and (xii) of
subsection (c) below as well as such other related matters as you may reasonably
request, and such counsel shall have received such papers and information as
they may reasonably request to enable them to pass upon such matters;

     (c) Wilson Sonsini Goodrich & Rosati, counsel for the Company, shall have
furnished to you their written opinion (a draft of such opinion is attached as
Annex II(b) hereto), dated such Time of Delivery, in form and substance
satisfactory to you, to the effect that:

                (i)   The Company has been duly incorporated and is validly
     existing as a corporation in good standing under the laws of the State of
     Delaware, with corporate power and authority to own its properties and
     conduct its business as described in the Prospectus;

                (ii)  The Company has an authorized capitalization as set forth
     in the Prospectus, and all of the issued shares of capital stock of the
     Company (including the Shares being delivered at such Time of Delivery)
     have been duly and validly authorized and issued and are fully paid and
     non-assessable; and the Shares conform to the description of the Stock
     contained in the Prospectus in all material respects;

                                       9
<PAGE>

        (iii) The Company has been duly qualified as a foreign corporation for
     the transaction of business and is in good standing under the laws of each
     other jurisdiction in which it owns or leases properties or conducts any
     business so as to require such qualification, or is subject to no material
     liability or disability by reason of failure to be so qualified in any such
     jurisdiction, except where the failure to be so qualified as a foreign
     corporation would not, individually or in the aggregate, have a Material
     Adverse Effect (such counsel being entitled to rely in respect of the
     opinion in this clause upon opinions of local counsel and in respect of
     matters of fact upon certificates of officers of the Company, provided that
     such counsel shall state that they believe that both you and they are
     justified in relying upon such opinions and certificates);

        (iv)  Each U.S. subsidiary of the Company has been duly incorporated or
     organized and is validly existing as a corporation or limited liability
     company in good standing under the laws of its jurisdiction of
     incorporation or organization; and all of the issued shares of capital
     stock of each such subsidiary have been duly and validly authorized and
     issued, are fully paid and non-assessable, and (except for directors'
     qualifying shares and except as otherwise set forth in the Prospectus) are
     owned directly or indirectly by the Company, free and clear of all liens,
     encumbrances, equities or claims except for liens and encumbrances in the
     ordinary course and as would not have a Material Adverse Effect (such
     counsel being entitled to rely in respect of the opinion in this clause
     upon opinions of local counsel and in respect of matters of fact upon
     certificates of officers of the Company or its subsidiaries, provided that
     such counsel shall state that they believe that both you and they are
     justified in relying upon such opinions and certificates);

        (v)  To such counsel's knowledge and other than as set forth in the
     Prospectus, there are no legal or governmental proceedings pending to which
     the Company or any of its subsidiaries is a party or of which any property
     of the Company or any of its subsidiaries is the subject which, if
     determined adversely to the Company or any of its subsidiaries, would
     individually or in the aggregate have a Material Adverse Effect; and, to
     such counsel's knowledge, no such proceedings are threatened or
     contemplated by governmental authorities or threatened by others, except
     for such proceedings that would not individually or in the aggregate have a
     Material Adverse Effect;

        (vi)  This Agreement has been duly authorized, executed and delivered by
     the Company;

        (vii) The issue and sale of the Shares being delivered at such Time of
     Delivery to be sold by the Company and the compliance by the Company with
     all of the provisions of this Agreement and the consummation of the
     transactions herein contemplated will not conflict with or result in a
     breach or violation of any of the terms or provisions of, or constitute a
     default under, any indenture, mortgage, deed of trust, loan agreement or
     other agreement or instrument known to such counsel to which the Company or
     any of its subsidiaries is a party or by which the Company or any of its
     subsidiaries is bound or to which any of the property or assets of the
     Company or any of its subsidiaries is subject, (except for such breaches
     and violations (i) as would not have a Material Adverse Effect on the
     Company and (ii) as would not affect the Company's ability to issue the
     Shares) nor will such action result in any violation of the

                                       10
<PAGE>

     provisions of the Certificate of Incorporation or By-laws of the Company or
     any statute or any order, rule or regulation known to such counsel of any
     court or governmental agency or body having jurisdiction over the Company
     or any of its subsidiaries or any of their properties;

        (viii) No consent, approval, authorization, order, registration or
     qualification of or with any such court or governmental agency or body is
     required for the issue and sale of the Shares or the consummation by the
     Company of the transactions contemplated by this Agreement, except the
     registration under the Act of the Shares, approval by NASD of the terms of
     the sale of the Shares and such consents, approvals, authorizations,
     registrations or qualifications as may be required under state securities
     or Blue Sky laws in connection with the purchase and distribution of the
     Shares by the Underwriters;

        (ix)   To such counsel's knowledge, neither the Company nor
     Microtune (Texas), Inc., a Texas corporation is in violation of (a) its
     Certificate of Incorporation or By-laws or (b) in default in the
     performance or observance of any material obligation, agreement, covenant
     or condition contained in any indenture, mortgage, deed of trust, loan
     agreement, or lease or agreement or other instrument to which it is a party
     or by which it or any of its properties may be bound, except for such
     conflicts, breaches, violations or defaults that would not individually or
     in the aggregate have a Material Adverse Effect with respect to subsection
     (b);

        (x)    The statements set forth in the Prospectus under the caption
     "Description of Capital Stock", insofar as they purport to constitute a
     summary of the terms of the Stock, and "Underwriting", insofar as they
     purport to describe the provisions of the laws and documents referred to
     therein, are accurate and complete summaries and descriptions of such
     provisions in all material respects;

        (xi)   The Company is not an "investment company", as such term is
     defined in the Investment Company Act; and

        (xii)  The Registration Statement and the Prospectus and any further
     amendments and supplements thereto made by the Company prior to such Time
     of Delivery (other than the financial statements and related schedules
     therein and other financial data included therein, as to which such counsel
     need express no opinion) comply as to form in all material respects with
     the requirements of the Act and the rules and regulations thereunder;
     although they do not assume any responsibility for the accuracy,
     completeness or fairness of the statements contained in the Registration
     Statement or the Prospectus, except for those referred to in the opinion in
     subsection (xi) of this Section 7(c), they have no reason to believe that,
     as of its effective date, the Registration Statement or any further
     amendment thereto made by the Company prior to such Time of Delivery (other
     than the financial statements and related schedules therein and other
     financial data included therein, as to which such counsel need express no
     opinion) contained an untrue statement of a material fact or omitted to
     state a material fact required to be stated therein or necessary to make
     the statements therein not misleading or that, as of its date, the
     Prospectus or any further amendment or supplement thereto made by the
     Company prior to such Time of Delivery (other than the financial statements
     and related schedules therein and other financial data included therein, as
     to which such counsel need express no opinion) contained an untrue
     statement of a material fact or omitted to state a material fact necessary
     to make the statements therein, in the light of the circumstances under
     which they were made, not misleading or that, as of such Time of Delivery,
     either the Registration Statement or the Prospectus or any further
     amendment or supplement thereto made by the Company prior to such Time of
     Delivery (other than the financial statements and related schedules therein
     and other financial data included therein, as to which such counsel need
     express no opinion) contains an untrue

                                       11
<PAGE>

     statement of a material fact or omits to state a material fact necessary to
     make the statements therein, in the light of the circumstances under which
     they were made, not misleading; and they do not know of any amendment to
     the Registration Statement required to be filed or of any contracts or
     other documents of a character required to be filed as an exhibit to the
     Registration Statement or required to be described in the Registration
     Statement or the Prospectus which are not filed or described as required;

        (xiii) The execution and delivery of the Agreement and Plan of Merger
     dated June 9, 2000 (the "Plan of Merger") by and between the Company and
     Microtune, Inc., a Texas corporation ("Microtune Texas"), and Microtune
     Merger Corporation, a Delaware corporation ("MMC"), has been duly
     authorized by all corporate action on the part of the Company, Microtune
     Texas and MMC. Each of the Company, Microtune Texas and MMC had full
     corporate power and authority necessary to execute and deliver the Plan of
     Merger, to execute and file the Articles of Merger with the Secretary of
     State of the State of Texas and the Certificate of Merger with the
     Secretary of State of Delaware and to consummate the reincorporation
     contemplated by the Plan of Merger, and the Plan of Merger at the time of
     execution and immediately prior to the effectiveness of the Merger
     constituted a valid and binding obligation of each of the Company,
     Microtune Texas and MMC, subject to the effect of (x) applicable
     bankruptcy, insolvency, reorganization, moratorium or other similar federal
     or state laws affecting the rights of creditors and (y) to general
     principles of equity. The execution and delivery of the Plan of Merger and
     the consummation of the merger contemplated thereby (the "Merger") did not
     contravene any provision of Texas or Delaware corporate law or the
     Certificate of Incorporation or Bylaws of the Company, the Articles of
     Incorporation or Bylaws of Microtune Texas or the Certificate of
     Incorporation or Bylaws of MMC, except for any such contravention that
     would not have a Material Adverse Effect on the Company. The Merger is
     effective under the laws of the State of Texas and the State of Delaware.

     (d) Fulbright & Jaworski, L.L.P., patent counsel for the Company, shall
have furnished an opinion dated at such Time of Delivery, in form and substance
satisfactory to you.

     (e) German and Philippine foreign counsel to the Company shall have
furnished an opinion dated at such Time of Delivery, in form and substance
satisfactory to you;

     (f) On the date of the Prospectus at a time prior to the execution of this
Agreement, at 9:30 a.m., New York City time, on the effective date of any post-
effective amendment to the Registration Statement filed subsequent to the date
of this Agreement and also at each Time of Delivery, Ernst & Young, L.L.P. shall
have furnished to you a letter or letters, dated the respective dates of
delivery thereof, in form and substance satisfactory to you, to the effect set
forth in Annex I hereto (the executed copy of the letter delivered prior to the
execution of this Agreement is attached as Annex I(a) hereto and a draft of the
form of letter to be delivered on the effective date of any post-effective

                                       12
<PAGE>

amendment to the Registration Statement and as of each Time of Delivery is
attached as Annex I(b) hereto);

     (g) (i) Neither the Company nor any of its subsidiaries shall have
sustained since the date of the latest audited financial statements included in
the Prospectus any loss or interference with its business from fire, explosion,
flood or other calamity, whether or not covered by insurance, or from any labor
dispute or court or governmental action, order or decree, otherwise than as set
forth or contemplated in the Prospectus, and (ii) since the respective dates as
of which information is given in the Prospectus there shall not have been any
change in the capital stock or long-term debt of the Company or any of its
subsidiaries or any change, or any development involving a prospective change,
in or affecting the general affairs, management, financial position,
stockholders' equity or results of operations of the Company and its
subsidiaries, otherwise than as set forth or contemplated in the Prospectus, the
effect of which, in any such case described in clause (i) or (ii), is in the
judgment of the Representatives so material and adverse as to make it
impracticable or inadvisable to proceed with the public offering or the delivery
of the Shares being delivered at such Time of Delivery on the terms and in the
manner contemplated in the Prospectus;

     (h) On or after the date hereof there shall not have occurred any of the
following: (i) a suspension or material limitation in trading in securities
generally on the NASDAQ; (ii) a suspension or material limitation in trading in
the Company's securities on NASDAQ; (iii) a general moratorium on commercial
banking activities declared by either Federal or New York or Texas State
authorities; or (iv) the outbreak or escalation of hostilities involving the
United States or the declaration by the United States of a national emergency or
war, if the effect of any such event specified in this clause (iv) in the
judgment of the Representatives makes it impracticable or inadvisable to proceed
with the public offering or the delivery of the Shares being delivered at such
Time of Delivery on the terms and in the manner contemplated in the Prospectus;

     (i) The Shares at such Time of Delivery shall have been duly listed for
quotation on NASDAQ; and

     (j) The Company shall have obtained and delivered to the Underwriters
executed copies of a lock-up agreement from the stockholders holding
substantially all of the Stock of the Company; in form and substance
satisfactory to you;

     (k) The Company shall have complied with the provisions of Section 5(c)
hereof with respect to the furnishing of prospectuses on the New York Business
Day next succeeding the date of this Agreement; and

     (l) The Company shall have furnished or caused to be furnished to you at
such Time of Delivery certificates of officers of the Company satisfactory to
you as to the accuracy of the representations and warranties of the Company
herein at and as of such Time of Delivery, as to the performance by the Company
of all of its obligations hereunder to be performed at or prior to such Time of
Delivery, and as to such other matters as you may reasonably request, and the
Company shall have furnished or caused to be furnished certificates as to the
matters set forth in subsections (a) and (f) of this Section.

     8.  (a)  The Company will indemnify and hold harmless each Underwriter
against any losses, claims, damages or liabilities, joint or several, to which
such Underwriter may become subject, under the Act or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon an untrue statement or alleged untrue statement of a
material fact contained in any Preliminary Prospectus, the Registration
Statement or the Prospectus, or any

                                       13
<PAGE>

amendment or supplement thereto, or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading, and will
reimburse each Underwriter for any legal or other expenses reasonably incurred
by such Underwriter in connection with investigating or defending any such
action or claim as such expenses are incurred; provided, however, that the
Company shall not be liable in any such case to the extent that any such loss,
claim, damage or liability arises out of or is based upon an untrue statement or
alleged untrue statement or omission or alleged omission made in any Preliminary
Prospectus, the Registration Statement or the Prospectus or any such amendment
or supplement in reliance upon and in conformity with written information
furnished to the Company by any Underwriter through Goldman, Sachs & Co.
expressly for use therein.

     (b) Each Underwriter will indemnify and hold harmless the Company against
any losses, claims, damages or liabilities to which the Company may become
subject, under the Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in any
Preliminary Prospectus, the Registration Statement or the Prospectus, or any
amendment or supplement thereto, or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading, in each case
to the extent, but only to the extent, that such untrue statement or alleged
untrue statement or omission or alleged omission was made in any Preliminary
Prospectus, the Registration Statement or the Prospectus or any such amendment
or supplement in reliance upon and in conformity with written information
furnished to the Company by such Underwriter through Goldman, Sachs & Co.
expressly for use therein; and will reimburse the Company for any legal or other
expenses reasonably incurred by the Company in connection with investigating or
defending any such action or claim as such expenses are incurred.

     (c) Promptly after receipt by an indemnified party under subsection (a) or
(b) above of notice of the commencement of any action, such indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under such subsection, notify the indemnifying party in writing of the
commencement thereof; but the omission so to notify the indemnifying party shall
not relieve it from any liability which it may have to any indemnified party
otherwise than under such subsection.  In case any such action shall be brought
against any indemnified party and it shall notify the indemnifying party of the
commencement thereof, the indemnifying party shall be entitled to participate
therein and, to the extent that it shall wish, jointly with any other
indemnifying party similarly notified, to assume the defense thereof, with
counsel reasonably satisfactory to such indemnified party (who shall not, except
with the consent of the indemnified party, be counsel to the indemnifying
party), and, after notice from the indemnifying party to such indemnified party
of its election so to assume the defense thereof, the indemnifying party shall
not be liable to such indemnified party under such subsection for any legal
expenses of other counsel or any other expenses, in each case subsequently
incurred by such indemnified party, in connection with the defense thereof other
than reasonable costs of investigation.  No indemnifying party shall, without
the written consent of the indemnified party, effect the settlement or
compromise of, or consent to the entry of any judgment with respect to, any
pending or threatened action or claim in respect of which indemnification or
contribution may be sought hereunder (whether or not the indemnified party is an
actual or potential party to such action or claim) unless such settlement,
compromise or judgment (i) includes an unconditional release of the indemnified
party from all liability arising out of such action or claim and (ii) does not
include a statement as to or an admission of fault, culpability or a failure to
act, by or on behalf of any indemnified party.

                                       14
<PAGE>

     (d) If the indemnification provided for in this Section 8 is unavailable to
or insufficient to hold harmless an indemnified party under subsection (a) or
(b) above in respect of any losses, claims, damages or liabilities (or actions
in respect thereof) referred to therein, then each indemnifying party shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages or liabilities (or actions in respect thereof)
in such proportion as is appropriate to reflect the relative benefits received
by the Company on the one hand and the Underwriters on the other from the
offering of the Shares.  If, however, the allocation provided by the immediately
preceding sentence is not permitted by applicable law or if the indemnified
party failed to give the notice required under subsection (c) above, then each
indemnifying party shall contribute to such amount paid or payable by such
indemnified party in such proportion as is appropriate to reflect not only such
relative benefits but also the relative fault of the Company on the one hand and
the Underwriters on the other in connection with the statements or omissions
which resulted in such losses, claims, damages or liabilities (or actions in
respect thereof), as well as any other relevant equitable considerations.  The
relative benefits received by the Company on the one hand and the Underwriters
on the other shall be deemed to be in the same proportion as the total net
proceeds from the offering (before deducting expenses) received by the Company
bear to the total underwriting discounts and commissions received by the
Underwriters, in each case as set forth in the table on the cover page of the
Prospectus.  The relative fault shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Company on the one hand or the Underwriters on the other and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission.  The Company and the Underwriters
agree that it would not be just and equitable if contributions pursuant to this
subsection (d) were determined by pro rata allocation (even if the Underwriters
were treated as one entity for such purpose) or by any other method of
allocation which does not take account of the equitable considerations referred
to above in this subsection (d).  The amount paid or payable by an indemnified
party as a result of the losses, claims, damages or liabilities (or actions in
respect thereof) referred to above in this subsection (d) shall be deemed to
include any legal or other expenses reasonably incurred by such indemnified
party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this subsection (d), no Underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the Shares underwritten by it and distributed to the public were
offered to the public exceeds the amount of any damages which such Underwriter
has otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission.  No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation.  The Underwriters' obligations in this subsection (d) to
contribute are several in proportion to their respective underwriting
obligations and not joint.

     (e) The obligations of the Company under this Section 8 shall be in
addition to any liability which the Company may otherwise have and shall extend,
upon the same terms and conditions, to each person, if any, who controls any
Underwriter within the meaning of the Act; and the obligations of the
Underwriters under this Section 8 shall be in addition to any liability which
the respective Underwriters may otherwise have and shall extend, upon the same
terms and conditions, to each officer and director of the Company and to each
person, if any, who controls the Company within the meaning of the Act.

     9.  (a)  If any Underwriter shall default in its obligation to purchase the
Shares which it has agreed to purchase hereunder at a Time of Delivery, you may
in your discretion arrange for you or

                                       15
<PAGE>

another party or other parties to purchase such Shares on the terms contained
herein. If within thirty-six hours after such default by any Underwriter you do
not arrange for the purchase of such Shares, then the Company shall be entitled
to a further period of thirty-six hours within which to procure another party or
other parties satisfactory to you to purchase such Shares on such terms. In the
event that, within the respective prescribed periods, you notify the Company
that you have so arranged for the purchase of such Shares, or the Company
notifies you that it has so arranged for the purchase of such Shares, you or the
Company shall have the right to postpone a Time of Delivery for a period of not
more than seven days, in order to effect whatever changes may thereby be made
necessary in the Registration Statement or the Prospectus, or in any other
documents or arrangements, and the Company agrees to file promptly any
amendments to the Registration Statement or the Prospectus which in your opinion
may thereby be made necessary. The term "Underwriter" as used in this Agreement
shall include any person substituted under this Section with like effect as if
such person had originally been a party to this Agreement with respect to such
Shares.

     (b) If, after giving effect to any arrangements for the purchase of the
Shares of a defaulting Underwriter or Underwriters by you and the Company as
provided in subsection (a) above, the aggregate number of such Shares which
remains unpurchased does not exceed one-eleventh of the aggregate number of all
the Shares to be purchased at such Time of Delivery, then the Company shall have
the right to require each non-defaulting Underwriter to purchase the number of
Shares which such Underwriter agreed to purchase hereunder at such Time of
Delivery and, in addition, to require each non-defaulting Underwriter to
purchase its pro rata share (based on the number of Shares which such
Underwriter agreed to purchase hereunder) of the Shares of such defaulting
Underwriter or Underwriters for which such arrangements have not been made; but
nothing herein shall relieve a defaulting Underwriter from liability for its
default.

     (c) If, after giving effect to any arrangements for the purchase of the
Shares of a defaulting Underwriter or Underwriters by you and the Company as
provided in subsection (a) above, the aggregate number of such Shares which
remains unpurchased exceeds one-eleventh of the aggregate number of all of the
Shares to be purchased at such Time of Delivery, or if the Company shall not
exercise the right described in subsection (b) above to require non-defaulting
Underwriters to purchase Shares of a defaulting Underwriter or Underwriters,
then this Agreement (or, with respect to the Second Time of Delivery, the
obligations of the Underwriters to purchase and of the Company to sell the
Optional Shares) shall thereupon terminate, without liability on the part of any
non-defaulting Underwriter or the Company, except for the expenses to be borne
by the Company the Underwriters as provided in Section 6 hereof and the
indemnity and contribution agreements in Section 8 hereof; but nothing herein
shall relieve a defaulting Underwriter from liability for its default.

     10. The respective indemnities, agreements, representations, warranties and
other statements of the Company, and the several Underwriters, as set forth in
this Agreement or made by or on behalf of them, respectively, pursuant to this
Agreement, shall remain in full force and effect, regardless of any
investigation (or any statement as to the results thereof) made by or on behalf
of any Underwriter or any controlling person of any Underwriter, or the Company,
or any officer or director or controlling person of the Company, and shall
survive delivery of and payment for the Shares.

     11. If this Agreement shall be terminated pursuant to Section 9 hereof, the
Company shall not then be under any liability to any Underwriter except as
provided in Sections 6 and 8 hereof; but, if for any other reason any Shares are
not delivered by or on behalf of the Company as provided herein, the Company
will reimburse the Underwriters through you for all out-of-pocket expenses
approved in writing by you, including fees and disbursements of counsel,
reasonably incurred by the Underwriters

                                       16
<PAGE>

in making preparations for the purchase, sale and delivery of the Shares not so
delivered, but the Company shall then be under no further liability to any
Underwriter in respect of the Shares not so delivered except as provided in
Sections 6 and 8 hereof.

     12. In all dealings hereunder, you shall act on behalf of each of the
Underwriters, and the parties hereto shall be entitled to act and rely upon any
statement, request, notice or agreement on behalf of any Underwriter made or
given by you jointly or by Goldman, Sachs & Co. on behalf of you as the
representatives.

     All statements, requests, notices and agreements hereunder shall be in
writing, and if to the Underwriters shall be delivered or sent by mail, telex or
facsimile transmission to you as the representatives in care of Goldman, Sachs &
Co., 32 Old Slip, 21st Floor, New York, New York 10005, Attention: Registration
Department; and if to the Company shall be delivered or sent by mail, telex or
facsimile transmission to the address of the Company set forth in the
Registration Statement, Attention: Secretary; provided, however, that any notice
to an Underwriter pursuant to Section 8(c) hereof shall be delivered or sent by
mail, telex or facsimile transmission to such Underwriter at its address set
forth in its Underwriters' Questionnaire or telex constituting such
Questionnaire, which address will be supplied to the Company by you on request.
Any such statements, requests, notices or agreements shall take effect upon
receipt thereof.

     13. This Agreement shall be binding upon, and inure solely to the benefit
of, the Underwriters, and the Company to the extent provided in Sections 8 and
10 hereof, the officers and directors of the Company and each person who
controls the Company, or any Underwriter, and their respective heirs, executors,
administrators, successors and assigns, and no other person shall acquire or
have any right under or by virtue of this Agreement.  No purchaser of any of the
Shares from any Underwriter shall be deemed a successor or assign by reason
merely of such purchase.

     14. Time shall be of the essence of this Agreement.  As used herein, the
term "business day" shall mean any day when the Commission's office in
Washington, D.C.  is open for business.

     15. This Agreement shall be governed by and construed in accordance with
the laws of the State of New York.

     16. This Agreement may be executed by any one or more of the parties hereto
in any number of counterparts, each of which shall be deemed to be an original,
but all such counterparts shall together constitute one and the same instrument.

     If the foregoing is in accordance with your understanding, please sign and
return to us one for the Company plus one for each counsel, if any counterparts
hereof, and upon the acceptance hereof by you, on behalf of each of the
Underwriters, this letter and such acceptance hereof shall constitute a binding
agreement between each of the Underwriters, and the Company.  It is understood
that your acceptance of this letter on behalf of each of the Underwriters is
pursuant to the authority set forth in a form of Agreement Among Underwriters,
the form of which shall be submitted to the Company for examination, upon
request, but without warranty on your part as to the authority of the signers
thereof.

                                    Very truly yours,

                                    Microtune, Inc.

                                    By:
                                       ---------------------------------
                                      Name:  Douglas J. Bartek

                                       17
<PAGE>

                                  Title:  Chairman and Chief Executive Officer


Accepted as of the date hereof:

Goldman, Sachs & Co.

By:
   ------------------------------------
          (Goldman, Sachs & Co.)

On behalf of each of the Underwriters

Chase Securities Inc.

By:
   ------------------------------------

SG Cowen Securities Corporation

By:
   ------------------------------------

Bear, Stearns & Co. Inc.

By:
   ------------------------------------

                                       18
<PAGE>

                                  SCHEDULE I

<TABLE>
<CAPTION>

                                                                                               Number of Optional
                                                                                                  Shares to be
                                                                              Total Number of     Purchased if
                                                                                Firm Shares      Maximum Option
                                Underwriter                                   to be Purchased      Exercised
                              ---------------                                -----------------   ---------------
<S>                                                                           <C>              <C>
Goldman, Sachs & Co.........................................................
Chase Securities Inc........................................................
SG Cowen Securities Corporation.............................................
Bear, Stearns & Co. Inc.....................................................

                                                                              ----------------  ----------------
    Total...................................................................
                                                                              ================  ================
</TABLE>
<PAGE>

                                                                         ANNEX I

                 FORM OF ANNEX I DESCRIPTION OF COMFORT LETTER
                    FOR REGISTRATION STATEMENTS ON FORM S-1

     Pursuant to Section 7(f) of the Underwriting Agreement, the accountants
shall furnish letters to the Underwriters to the effect that:

        (a) They are independent certified public accountants with respect to
the Company and its subsidiaries within the meaning of the Act and the
applicable published rules and regulations thereunder;

        (b) In their opinion, the financial statements and any supplementary
financial information and schedules (and, if applicable, financial forecasts
and/or pro forma financial information) examined by them and included in the
Prospectus or the Registration Statement comply as to form in all material
respects with the applicable accounting requirements of the Act and the related
published rules and regulations thereunder; and, if applicable, they have made a
review in accordance with standards established by the American Institute of
Certified Public Accountants of the unaudited consolidated interim financial
statements, selected financial data, pro forma financial information, financial
forecasts and/or condensed financial statements derived from audited financial
statements of the Company for the periods specified in such letter, as indicated
in their reports thereon, copies of which have been separately furnished to the
representatives of the Underwriters (the "Representatives");

        (c) They have made a review in accordance with standards established by
the American Institute of Certified Public Accountants of the unaudited
condensed consolidated statements of income, consolidated balance sheets and
consolidated statements of cash flows included in the Prospectus as indicated in
their reports thereon copies of which have been separately furnished to the
Representatives and on the basis of specified procedures including inquiries of
officials of the Company who have responsibility for financial and accounting
matters regarding whether the unaudited condensed consolidated financial
statements referred to in paragraph (vi)(A)(i) below comply as to form in all
material respects with the applicable accounting requirements of the Act and the
related published rules and regulations, nothing came to their attention that
caused them to believe that the unaudited condensed consolidated financial
statements do not comply as to form in all material respects with the applicable
accounting requirements of the Act and the related published rules and
regulations;

        (d) They have compared the information in the Prospectus under selected
captions with the disclosure requirements of Regulation S-K and on the basis of
limited procedures specified in such letter nothing came to their attention as a
result of the foregoing procedures that caused them to believe that this
information does not conform in all material respects with the disclosure
requirements of Items 301, 302, 402 and 503(d), respectively, of Regulation S-K;

        (e) On the basis of limited procedures, not constituting an examination
in accordance with generally accepted auditing standards, consisting of a
reading of the unaudited financial statements and other information referred to
below, a reading of the latest available interim financial statements of the
Company and its subsidiaries, inspection of the minute books of the Company and
its subsidiaries since the date of the latest audited financial statements
included in the Prospectus, inquiries of officials of the Company and its
subsidiaries responsible for financial and
<PAGE>

accounting matters and such other inquiries and procedures as may be specified
in such letter, nothing came to their attention that caused them to believe
that:

        (i)  the unaudited consolidated statements of income, consolidated
     balance sheets and consolidated statements of cash flows included in the
     Prospectus do not comply as to form in all material respects with the
     applicable accounting requirements of the Act and the related published
     rules and regulations, or (ii) any material modifications should be made to
     the unaudited condensed consolidated statements of income, consolidated
     balance sheets and consolidated statements of cash flows included in the
     Prospectus for them to be in conformity with generally accepted accounting
     principles;

        (ii)  any other unaudited income statement data and balance sheet items
     included in the Prospectus do not agree with the corresponding items in the
     unaudited consolidated financial statements from which such data and items
     were derived, and any such unaudited data and items were not determined on
     a basis substantially consistent with the basis for the corresponding
     amounts in the audited consolidated financial statements included in the
     Prospectus;

        (iii) the unaudited financial statements which were not included in the
     Prospectus but from which were derived any unaudited condensed financial
     statements referred to in clause (a) and any unaudited income statement
     data and balance sheet items included in the Prospectus and referred to in
     clause (b) were not determined on a basis substantially consistent with the
     basis for the audited consolidated financial statements included in the
     Prospectus;

        (iv)  any unaudited pro forma consolidated condensed financial
     statements included in the Prospectus do not comply as to form in all
     material respects with the applicable accounting requirements of the Act
     and the published rules and regulations thereunder or the pro forma
     adjustments have not been properly applied to the historical amounts in the
     compilation of those statements;

        (v)   as of a specified date not more than five days prior to the date
     of such letter, there have been any changes in the consolidated capital
     stock (other than issuances of capital stock upon exercise of options and
     stock appreciation rights, upon earn-outs of performance shares and upon
     conversions of convertible securities, in each case which were outstanding
     on the date of the latest financial statements included in the Prospectus)
     or any increase in the consolidated long-term debt of the Company and its
     subsidiaries, or any decreases in consolidated net current assets or
     stockholders' equity or other items specified by the Representatives, or
     any increases in any items specified by the Representatives, in each case
     as compared with amounts shown in the latest balance sheet included in the
     Prospectus, except in each case for changes, increases or decreases which
     the Prospectus discloses have occurred or may occur or which are described
     in such letter; and

        (vi)  for the period from the date of the latest financial statements
     included in the Prospectus to the specified date referred to in clause (e)
     there were any decreases in consolidated net revenues or operating profit
     or the total or per share amounts of consolidated net income or other items
     specified by the Representatives, or any increases in any items specified
     by the Representatives, in each case as compared with the comparable period
     of the preceding year and with any other period

                                       2
<PAGE>

     of corresponding length specified by the Representatives, except in each
     case for decreases or increases which the Prospectus discloses have
     occurred or may occur or which are described in such letter; and

     (f) In addition to the examination referred to in their report(s) included
in the Prospectus and the limited procedures, inspection of minute books,
inquiries and other procedures referred to in paragraph (3) above, they have
carried out certain specified procedures, not constituting an examination in
accordance with generally accepted auditing standards, with respect to certain
amounts, percentages and financial information specified by the Representatives,
which are derived from the general accounting records of the Company and its
subsidiaries, which appear in the Prospectus, or in Part II of, or in exhibits
and schedules to, the Registration Statement specified by the Representatives,
and have compared certain of such amounts, percentages and financial information
with the accounting records of the Company and its subsidiaries and have found
them to be in agreement.

                                       3


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