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Fast AGC State when there is no signal?

Question asked by c3commsystems on May 13, 2017
Latest reply on Jun 13, 2017 by sripad

What will be the state of Fast AGC when there is no signal?


The receiver only sees noise. In my expectation, even with maximum gain, the amplified noise cannot reach the targeted AGC lock level. Therefore, the fast AGC will be in a pingpong operation switching between state 1 to state 2. In state 2, due to low power condition, fast AGC moves back to state 1. In state 1, since there is no over range, fast AGC goes to state 2 immediately.