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74HC4046

Part Number	74HC4046
Manufacturer	System Logic
Description	Phase-Locked Loop
Published	May 28, 2005
Detailed Description	SL74HC4046 Phase-Locked Loop High-Performance Silicon-Gate CMOS The device inputs are compatible with standard CMOS out...
Datasheet	74HC4046 PDF File

Overview

SL74HC4046 Phase-Locked Loop High-Performance Silicon-Gate CMOS The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
The SL74HC4046 phase-locked loop contains three phase comparators, a voltage-controlled oscillator (VCO) and unity gain opamp DEM OUT.
The comparators have two common signal inputs, COMPIN, and SIGIN.
Input SIGIN and COMPIN can be used directly coupled to large voltage signals, or indirectly coupled (with a series capacitor to small voltage signals).
The self-bias circuit adjusts small voltage signals in the linear region of the amplifier.
Phase comparator 1 (an exclusive OR gate) provides a digital er...

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