TR89103CS

The TR89103CS is produced by the Tritech,it is designed as caller ID receiver+DTMF to operate in countries using either the bellcore system or the british telecom system for caller display services.The TR89103CS includes receivers for both the US Bellcore specification TR-NWT-00030 and SR-TSV-002476 and the UK sin 227,sin 242 and CTA TW/P&E/312 requirements.This device is designed to offer wuperior flexibility and features over present CID devices.The circuit TR89103CS also includes an industry standard DTMF transmitter for redialing and a call progress detector for further system cost savings.

Features of the TR89103CS are:(1)single 3.5 to 5.25V power supply;(2)demodulates both V.23 and Bell 202 modes;(3)compatible with US Bellcore specification TRNWT-00030 & SR-TSV-002476 and UK BT SIN227,SIN242 and CTA TW/P&E/312;(4)built in DTMF transmitter(with single tone option) and call progress detect,for dial back;(5)high input sensitivity -48dBm;(6)TTL frequency output for "idle state alert tone" and call progress signals;(7)separate power down controls FSK,DTMF,call progress;(8)low power CMOS;(9)28-pin SOIC package.

The absolute maximum ratings of the TR89103CS are:(1)AVDD,DVDD supply voltage:-0.5 to 5.5 V;(2)input voltage:-0.3 to 5.8 V;(3)output voltage:-0.3 to 5.8 V;(4)storage temperature:-40 to 125.