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AD9629 with Automatic Gain Control @ Input

Question asked by davekirl on Aug 29, 2013
Latest reply on Aug 30, 2013 by DougI

Hi, i'm wondering if it is possible to use an AGC circuit at the input to the AD9629 (or similar ADC), and somehow control the VGA Gain from a feedback signal direct from the ADC?

 

Does the AD9629 have the ability to output a signal level, based on it's input signal level, which could be used as the control voltage for a VGA in an AGC loop? Or is a separate peak detector or something similar required at the ADC input to measure the input signal level?

 

Many thanks in advance,

 

Cheers,

 

Dave

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