ST7537

The ST7537 is designed as one kind of half duplex synchronous FSK MODEM that operates from a dual power supply +5V and -5V, and requires an external interface for the coupling to the power line. It offers two programmable data rate with two programmablechannels each.

Features of the ST7537 are:(1)halfduplex synchronous fskmodem; (2)two programmable channels for 600BPS datarate; (3)two programmable channels for 1200BPSDATA rate automatically tuned rx and tx filters ; (4)TX carrier frequencies synthesized fromexternal crystal; (5)low distortion tx signal (S/H2 . 50dB); (6)automatic level control on tx signal ; (7)Rx sensitivity: 2mVRMS (600bps) and 3mVRMS (1200bps) Rx clock recovery; (8)power-down mode ; (9)suitable to application in accordance with DH028/29 ENEL, EN50065-1 cenelec and fcc specifications.

The absolute maximum ratings of the ST7537 can be summarized as:(1)positive supply voltage:-0.3 to +7 V;(2)negative supply voltage:-7 to +0.3 V;(3)voltage between AGND and DGND:-0.3 to +0.3 V;(4)digital input voltage:DGND-0.3 to DVDD+0.3 V;(5)digital output voltage:DGND-0.3 to DVDD+0.3 V;(6)digital output current:-5 to +5 mA;(7)analog input voltage:AVSS-0.3 to AVDD+0.3 V;(8)analog output voltage:AVSS-0.3 to AVDD+0.3 V;(9)analog output current:-5 to +5 mA;(10)power dissipation:500 mW;(11)storage temperature:-25 to +70;(12)operating temperature:-25 to + 70 . If you want to know more information such as the electrical characteristics about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .