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phase locked loop IC

Question asked by moki on Sep 30, 2014
Latest reply on Oct 1, 2014 by rbrennan

He All,

I want to design a phase sensitive detector to recover small signal in presence of noise and low frequency. Which mean I want to demodulate the signal so that I can recover the signal. I have used the synchronous detection but the problem is if the reference signal phase is change from 0 to 90 degrees (from a sine to cosine) the output signal phase changes. Which to ask if there is any PHASE LOCKED LOOP IC which can be used for this application that locked the phase no matter if the reference input signal phase changes.

 

thanks

Moki

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