Phase Comparator
MM54C932 MM74C932 Phase Comparator
February 1988
MM54C932 MM74C932 Phase Comparator
General Description
The MM74C932 M...
Description
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 frequencies that are close to harmonics of the VCO center frequency Phase comparator II is an edge-controlled digital memory network It provides a digital error signal (phase comp II out) and lock in signal (phase pulses) to indicate a locked condition and maintains a 0 phase shift between signal input and comparator input
Features
Y Y Y Y
Wide supply voltage range Convenient mini-DIP package TRI-STATE phase-comparator output (comparator II) 200 mV input voltage (signal in) sensitivity (typical)
Block and Connection Diagrams
www.DataSheet4U.com
TL F 5921– 1
Dual-In-Line Package
TL F 5921– 2
Top View Order Number MM54C932 or MM74C932
TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation
w
w
w
.d
h s a t a
ee
. u t4
m o c
TL...
Similar Datasheet