DESCRIPTION

The ST7537HS1 is a half duplex asynchronous FSK MODEM designed for home automation communication on the domestic electric mains which complies with the EN 50065-1 CENELEC standard.

.HALF DUPLEX ASYNCHRONOUS 2400bps FSK MODEM

.Tx CARRIER FREQUENCY SYNTHESIZED FROM EXTERNAL CRYSTAL

.LOW DISTORTION Tx SIGNAL

.Rx SENSITIVITY BETTER THAN 1mVRMS

.CARRIER DETECTION

.WATCH-DOG INPUT

.RESET AND MASTER CLOCK OUTPUTS FOR MICROCONTROLLER

.POWER AMPLIFIER BIAS CURRENT CONTROL (HIGH IMPEDANCE IN Rx MODE)

.SIMPLE AND ECONOMICAL APPLICATION SCHEMATICS

.COMPATIBLE WITH CENELEC EN 50065-1 AND FCC SPECIFICATION

.CARRIER DETECT CLAMPING ON RxD PROGRAMMABLE (ALLOWING DEMODULA TION ON VERY LOW RECEIVE LEVEL,

1mVRMSTYPICALLY)