Signaling system with low-power automatic gain control
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United States of America Patent
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Jan 24, 2012
Grant Date -
Nov 11, 2010
app pub date -
Jul 20, 2010
filing date -
Apr 18, 2006
priority date (Note) -
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Abstract
An integrated circuit receiver includes a first channel comprising an amplifier responsive to a first gain control value in a first mode to receive an input signal and generate a first amplified signal having a transition rate. Detection circuitry in the first channel detects transitions in the first amplified signal in accordance with a detected transition rate. The detected transition rate is based on the first gain control value. Gain control logic adjusts the first gain control value based on a desired detected transition rate. The gain control logic generates a second gain control value for use during a second mode. The second gain control value being based on the first gain control value.
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