Automatic gain control system and method using multiple local AGC loops

摘要

A receiver comprises a first Variable Gain Amplifier (VGA) that amplifies an input signal in accordance with a first gain to produce a first amplified signal. The first gain is controlled based on the first amplified signal. The receiver includes a second VGA that produces a second amplified signal responsive to the first amplified signal. The second VGA has a second gain controlled based on the second amplified signal.