V.22 bis Modem Enters Telemetry Market

Oct. 8, 2008
Adding to the company's wireline modem family, the CMX868A debuts as a revised multi-standard modem, groomed for telemetry and telephone applications. Compliant with ITU and Bell requirements, the device is backward compatible with the CMX868,

Adding to the company's wireline modem family, the CMX868A debuts as a revised multi-standard modem, groomed for telemetry and telephone applications. Compliant with ITU and Bell requirements, the device is backward compatible with the CMX868, allowing re-use of existing software and hardware. It features an enhanced DTMF codec that promises greater compatibility with global exchanges and third-party DTMF encoders as well as higher immunity to falsing on voice. Operating from a single 2.7V to 5.5V supply, control and data transfers commute via a high-speed serial bus, compatible with standard microcontroller interfaces. For data transfers, users select either 8-bit bytes or 16-bit words through programmable Tx/Rx USARTs. Supported formats are either transparent synchronous data or multi-format asynchronous data compatible with the ITU V.14 recommendation. Other on-chip features include line drivers and a hybrid receiver, a ringing signal/line reversal detector that functions even when the device is in power-save mode, hook-switch/relay drive output, software gain controls, and DTMF transmit twist compensation. The CMX868A is available in 24-pin TSSOP, SOIC, and DIP packages. CML MICROCIRCUITS INC., Winston-Salem, NC. (800) 638-5577.

Company: CML MICROCIRCUITS INC.

Product URL: Click here for more information

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