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)