MM54C932 MM74C932 Phase Comparator February 1988 MM54C932 MM74C932 Phase Comparator General Description The MM74C932 MM54C932 consists of two independent output phase comparator circuits The two phase comparators have a common signal input and a common comparator input The signal input can be directly coupled for a large voltage signal or capacitively coupled to the self-biasing amplifier at the signal input for a small voltage signal Phase comparator I an exclusive-OR gate provides a digital error signal (phase comp I out) and maintains 90 phase shifts at the VCO center frequency Between signal input and comparator input (both at 50% duty cycle) it may lock onto the signal input frequenci...

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