Update: 29 September, 2023
The MM74HC4046 is a low power phase lock loop that utilizes advanced silicon-gate CMOS technology to achieve high frequency operation. This device contains a low power linear voltage controlled oscillator (VCO), a source follower, and three phase comparators. Phase Comparator I is an exclusive OR (XOR) gate that provides a digital error signal to maintain a 90 degree phase shift between the VCO's center frequency and the input signal (50% duty cycle input waveforms). Phase Comparator III is an SR flip-flop gate that can be used to provide the phase comparator functions and performs similarly to the first comparator. Phase Comparator II is an edge sensitive digital sequential comparator.
File format: PDF
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MD5 Checksum: 8259E6CBAA3D565E1E5EDB373D003FD1
Publication date: 06 June, 2012
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PDF Link: FAIRCHILD MM74HC4046 DATA SHEET PDF