×

Amplifier gain control circuit for the wireless transceiver

  • US 7,701,290 B2
  • Filed: 04/03/2008
  • Issued: 04/20/2010
  • Est. Priority Date: 12/27/2007
  • Status: Active Grant
First Claim
Patent Images

1. An amplifier gain control circuit for the wireless transceiver, comprising:

  • at least one amplifier;

    an analog to digital converter connected to said amplifier and used for receiving an analog gain control voltage to transform into a digital control signal, wherein the digital control signal is used for controlling the gain of said amplifier by a digital process;

    a digital to analog converter connected to said analog to digital converter and used for receiving said digital control signal to transform into an analog signal; and

    a bias circuit connected to said digital to analog converter and said amplifier, used for receiving said analog gain control voltage and said analog signal and accordingly providing an analog bias to said amplifier to fine tune and correct the gain of said amplifier by an analog process, such that the least bit error occurred during the gain of said amplifier by the digital process can be corrected.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×