CML CMX869B
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 construct 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 V.32 bis automode-modem provides operation from 14400 bps with automatic fallback through to 4800 bps, retrain, rate re-negotiation and automatic detection of V.22 and V.22 bis modems.FEATURES
● V.32 bis/V.32/V.22 bis/V.22 Automode Modem● EPOS Terminals
● V.22 bis/V.22 Manual Mode (2400, 1200 bps)
● V.23 (1200/75, 1200/1200, 75, 1200 bps FSK)
● Telephone Telemetry Systems
● Remote Utility Meter Reading
● Bell 202 (1200/150, 1200/1200, 150, 1200 bps FSK)
● Security Systems
● V.21 or Bell 103 (300/300 bps FSK)
● High Performance DTMF Codec
● Industrial Control Systems
● Electronic Cash Terminals
● Single/Dual Tone Encoders and Decoders
● Pay-Phones
● ‘Powersave’ Standby Mode
● Cable TV Set-Top Boxes
● Asynchronous, Synchronous and HDLC Modes LINE LINE INTERFACE TX USART & SCRAMBLER. QAM / FSK MODULATOR. TONE / DTMF GENERATOR. RX DESCRAMBLER & USART, QAM / FSK RECEIVER. CALL PROGRESS / TONE / DTMF DETECTOR. RING DETECTOR. RELAY DRIVER. CMX869B C-BUS SERIAL INTERFACE HOST µC 1. Brief
DESCRIPTION
A high-quality DTMF decoder with excellent immunity to falsing on voice and a standard DTMF encoder are included. Alternatively, the device can transmit and detect user-program...