Title: Method and apparatus for a gain controlled mixer
Application Number: 200510076299 Application Date: 2005.04.29
Publication Number: 1694371 Publication Date: 2005.11.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B1/40;H03D3/00
Applicant(s) Name: Atheros Comm Inc. Address:
Inventor(s) Name: Samavati Hirad
Attorney & Agent: liu jie
Abstract:
    A gain controlled mixer for an integrated CMOS transceiver. Accuracy of the controlled gain may be relatively invariant over temperature, manufacturing process, and other variations attendant to circuit realizations in a CMOS transceiver, and other realizations. A plurality of substantially matched circuit elements are instantiated and disposed similarly within the gain controlled mixer, enhancing the gain accuracy of selectable gain control states. Matching gain and other functions between circuit elements is further enhanced by appropriately controlling DC operating point conditions.
Time: 34
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