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Method and system for a shared GM-stage between in-phase and quadrature channels

  • US 8,023,591 B2
  • Filed: 12/31/2006
  • Issued: 09/20/2011
  • Est. Priority Date: 12/06/2006
  • Status: Expired due to Fees
First Claim
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1. A method for processing signals in a communications system, the method comprising:

  • processing an in-phase component signal for an in-phase channel and a quadrature component signal for a quadrature channel utilizing a shared transconductance stage in a frequency demodulator;

    generating a single differential output signal for said in-phase component signal and said quadrature component signal in said transconductance stage, wherein a load is communicatively coupled between a pair of output terminals of said transconductance stage corresponding to said single differential output signal; and

    adjusting a linearity of said transconductance stage utilizing one or more biasing signals.

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