CML Microcircuits CMX867
The CMX867 is a multi-standard modem for use in telephone based information and telemetry systems. The data transmitted and received by the modem is also transferred over the same serial bus. It can transmit and detect standard DTMF and modem calling and answer signals or user-specific programmed single or dual tone signals.| Part No. | CMX867 |
|---|---|
| Datasheet | CMX867 Download |
| Manufacturer |  CML Microcircuits |
| Description | Low Power V.22 Modem |
| Buy | Stock & Price |
FEATURES
● V.22, Bell 212A 1200/1200 or 600/600 bps DPSK● 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
● DTMF/Tones Transmit and Receive
● ‘Powersave’ Standby Mode
● Software and Hardware Compatible with CMX868 CMX867 Low Power V.22 Modem Provisional Information
APPLICATIONS
● Telephone Telemetry Systems● Remote Utility Meter Reading
● Security Systems
● Industrial Control Systems
● Electronic Cash Terminals
● Pay-Phones
● Cable TV Set-Top Boxes 1.1 Brief
DESCRIPTION
Control of the device is via a simple high speed serial bus, compatible with most types of µC serial interface. On-chip programmable Tx and Rx USARTs meeting the requirements of V.14 are provided for use with asynchronous data and allow unformatted synchronous data to be received or transmitted as 8-bit words. A general purpose Call Progress signal detector is also included. Flexible line driver and receive hybrid circuits are integrated on chip, requiring only passive external components to build a 2 or 4-wire line interface.
