器件名称:
MT88E45BN
功能描述:
4-Wire Calling Number Identification Circuit 2
文件大小:
488.73KB 共28页
简 介:
MT88E45B 4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2) Features Compatible with: Bellcore GR-30-CORE, SR-TSV-002476, ANSI/TIA/EIA-716, 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 IN2+ IN2GS2 VREF Bias Generator PWDN Oscillator + Hybrid CASen MODE FSKen PWDN CASen May 2003 Ordering Information MT88E45BS 20 Pin SOIC MT88E45BN 20 Pin SSOP -40°C to 85°C Description The MT88E45B is a low power CMOS integrated circuit suitable for receiving the physical layer signals used in North American (Bellcore) Calling Identity Deliver……
