Title: Oscillator with quadrature output in a cross-coupled configuration
Application Number: 200510063611 Application Date: 2005.03.28
Publication Number: 1677841 Publication Date: 2005.10.05
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03B5/08,H04B1/26
Applicant(s) Name: Broadcom Corp. Address:
Inventor(s) Name:
Attorney & Agent: cai xiaogong
Abstract:
     An oscillator that provides a quadrature output and has a cross-coupled configuration is disclosed. The oscillator generates an output signal having a frequency. Two phase shift circuits, or stages, are activated by a control signal to provide phase shifts within the oscillator. Each phase shift circuit includes poles to provide the phase shift. A pole includes a varactor to tune, adjust or vary the phase shift accordingly.
Time: 6
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