MCl45436 general infrared remote control receiving circuit (dual-tone multi-frequency signal receiving circuit)

Published:2011/7/15 21:57:00 Author:Christina | Keyword: general, infrared, remote control, receiving circuit, dual-tone, multi-frequency, signal receiving | From:SeekIC

The MC14536 is designed as one kind of dual-tone multi-frequency signal receiving circuit that can be used in telephones, and it can be used in the multi-functional general infrared remote control signal receiver. The internal circuit is composed of the dial tone filter, the preamplifier, the high and low frequency group signal separator, the zero-crossing wave detector, the band-pass filter, the amplitude detector, the output decoder and the reference clock oscillator.etc. Features The Silicon gate CMOS process;The single power supply with the voltage of +5V;Good power supply line noise index and dial tone performance;It tests all the 16 standard digitals;External crystal (3.579545 MHz);It provides protection time to enhance the immunity performance;It outputs the 4-bit hexadecimal code;The switch capacitance filter technology can be used in the digitization of the timing control and output circuit.



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