Product category: Communications ICs (Wired)
News Release from: CML Microcircuits | Subject: CMX865A DTMF codec and telecom signalling combo
Edited by the Electronicstalk Editorial Team on 16 February 2007
Codec and signalling
chipset for telecomms
CML's new CMX865A DTMF codec and telecom signalling combo gives designers increased flexibility when designing new-generation telemetry and telephone based information systems
CML's new CMX865A DTMF codec and telecomms signalling combo gives designers increased flexibility when designing new-generation telemetry and telephone based information systems. The low-cost CMX865A offers advanced performance and low power requirements in a small package, making it suitable for wireless local terminals (FCT/FWT/WLL), private branch exchanges (PBXs) and alarm and monitoring applications.
This article was originally published on Electronicstalk on 16 February 2007 at 8.00am (UK)
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The CMX865A offers multistandard signalling capabilities, with data applications being facilitated by a flexible V.23/V.21 FSK (plus Bell equivalent) on-chip modem.
Flexible line driver, hybrid and receiver circuits are integrated on-chip, requiring only passive components to build a 2 or 4-wire line interface.
A high-quality DTMF decoder and a standard DTMF encoder are included to expand the range of applications suited to the CMX865A.
Host control and data transfer is via a high-speed serial bus that operates in normal and power-saving modes, compatible with most simple types of microcontroller serial interface.
An embedded USART allows multiformat asynchronous data and unformatted synchronous data to be received or transmitted as 8bit bytes.
The CMX865A operates from a single 3.0V to 3.6V supply over a temperature range of -40 to +85C and is available in 16-pin SOIC (D4) or 16-pin TSSOP (E4) packages.
The 10k-piece OEM guide price is $1.34.
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