Patent ID: 9595990
Date: 2017-03-14
CPC Classifications: H03G,H04L

Claim:
1. A circuit for enabling an adaptation of automatic gain control (AGC), the circuit comprising: an automatic gain control circuit configured to receive an input signal and to generate a boosted input signal; an equalization circuit configured to receive the boosted input signal generated by the automatic gain control circuit and to generate an equalized input signal; a decision circuit configured to receive the equalized input signal, wherein the decision circuit generates decision outputs based upon the equalized input signal; an average peak signal magnitude adaptation circuit configured to receive an output of the decision circuit and to generate an average peak signal magnitude; an average peak signal target calculation circuit configured to receive the average peak signal magnitude and a maximum peak signal amplitude, wherein the average peak signal magnitude adaptation circuit generates a target average peak signal magnitude; and an AGC adaptation circuit configured to receive an average peak signal magnitude and the target average peak signal magnitude, wherein the AGC adaptation circuit provides an AGC control signal to the AGC circuit to maximize the input signal magnitude within an acceptable linearity range.