ST7537HS1 - HOME AUTOMATION MODEM
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.
It mainly operates from a 10V power supply and a 5V power supply for the microcontroller digital interface.
It is inter
ST7537HS1 HOME AUTOMATION MODEM .
.
.
.
.
.
.
.
.
.
.
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 PROG
ST7537HS1 Features
* - An additionnal amplifier allows the observation of the Rx band-pass filter output on pin RxFO. - A direct input to the Tx band-pass filter and to the IF filter (TxIFI) is selected when TEST3 = 1. - The 1 second normal duration of the Tx to Rx mode automatic switching is reduced to 488µs and the 1.
