Datasheet Summary
MM74HC942 300 Baud Modem
January 1988
MM74HC942 300 Baud Modem
General Description
The MM74HC942 is a full duplex low speed modem It provides a 300 baud bidirectional serial interface for data munication over telephone lines and other narrow bandwidth channels It is Bell 103 patible The MM74HC942 utilizes advanced silicon-gate CMOS technology Switched capacitor techniques are used to perform analog signal processing
Features
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.. MODULATOR SECTION
The modulator contains a frequency synthesizer and a sine wave synthesizer It produces a phase coherent frequency shift keyed (FSK) output LINE DRIVER AND HYBRID SECTION The line driver and hybrid are...