Communication IC modem CMX869B

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The CMX869B is a multi-standard modem for use in EPOS terminals and telephone based information and telemetry systems. This highly integrated single-chip modem IC provides the functions needed to implement a ITU V.32 bis automode modem or a V.22 bis, V.22, V.21 and Bell 202, Bell 103 compatible modem operating under the control of external host timing for EPOS and other proprietary protocols. The device integrates a V.32 bis automode modem, DTMF decoder, software-controlled output, ring detector, and line inputs and outputs that can be single ended or differential. Host control and data transfer is via CML’s C-BUS high-speed serial bus. V.32 bis/ V.32/ V.22 bis/ V.22 Automodem – (14400, 12000, 9600, 7200, 4800, 2400, 1200 bps Duplex) V.22 bis/V.22 Manual Modem – (2400, 1200 bps) V.23 (1200/75, 1200/1200, 75, 1200 bps FSK) Bell 202 (1200/150, 1200/1200, 150, 1200 bps FSK) V.21 or Bell 103 (300/300 bps FSK) High Performance DTMF Modem Single/Dual Tones Transmit and Receive ‘Powersave’ Standby Mode Asynchronous, Synchronous and HDLC Modes EPOS Terminals Telephone Telemetry Systems Remote Utility Meter Reading Security Systems Industrial Control Systems Electronic Cash Terminals Pay-Phones Cable TV Set-Top Boxes