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<PAGE> Exhibit 21.1 MICROTUNE, INC. LIST OF SUBSIDIARIES AND AFFILIATES Wholly Owned Subsidiaries Microtune (Texas), Inc. Indirectly Owned Subsidiaries HMTF Acquisition (Bermuda) Ltd. Microtune International HMTF Erste Beiteiligungs GmbH NSF RF-Technologies Corporation Residenz Zehnte Vermogensverwaltungs GmbH TEMIC RF - Technologies Corporation TEMIC TELEFUNKEN Hochfrequenztechnik GmbH TEMIC TELEFUNKEN RF-Engineering, LLC
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