MT88E45

www.DataSheet4U.com MT88E45 4-Wire Calling Number Identification Circuit 2 Advance Information Features Compatible with: Bellcore GR-30-CORE, SR-TSV-002476, ANSI/TIA/EIA-716, draft TIA/EIA-777; ETSI ETS 300 778-1 (FSK only variant) & -2; BT (British Telecom) SIN227 & SIN242 Bellcore ‘CPE Alerting Signal’ (CAS), ETSI ‘Dual Tone Alerting Signal’ (DT-AS), BT Idle State and Loop State ‘Tone Alert Signal’ detection 1200 baud Bell 202 and CCITT V.23 FSK demodulation Separate differential input amplifiers with adjustable gain for Tip/Ring and telephone hybrid or speech IC connections Selectable 3-wire FSK data interface (bit stream or 1 byte buffer) Facility to monitor the stop bit for framing error check FSK Carrier detect status output 3 to 5V +/- 10% supply voltage Uses 3.579545MHz crystal or ceramic resonator Low power CMOS with power down Bellcore CID (Calling Identity Delivery) and CIDCW (Calling Identity Delivery on Call Waiting) telephones and adjuncts ETSI, BT CLIP (Calling Line Identity Presentation) and CLIP with Call Waiting telephones and adjuncts Fax and answering machines Computer Telephony Integration (CTI) systems FSKen+Tip/Ring CASen IN1+ IN1GS1 PWDN (4-Wire CNIC2) ISSUE 2 March 1999 DS5143 Ordering Information MT88E45AS 20 Pin SOIC -40°C to 85°C Description The MT88E45 is a low power CMOS integrated circuit suitable for receiving the physical layer signals used in North American (Bellcore) Calling Identity Delivery on Call Waiting (CIDCW) and Calling...