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CML rolls baseband processor IC for FSR radios

Posted: 13 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:cml microcircuits? cmx882? baseband processor? fsr radio processor? data communication ic?

CML Microcircuits (UK) Ltd has introduced the CMX882 baseband processor IC for Family Radio Service (FSR)-type leisure radios that meet new and existing FRS features and applications, including the recently approved digital data communication (SMS) function.

Available in a 28-pin TSSOP, the chip operates down to 2.7V and performs audio and signaling processing functions. It also features packet data facilities to enable SMS, remote control and simple telemetry capabilities in FRS radios.

Under the control of the host capacitor, the CMX882 can be configured to different operational states including basic 'standby' monitoring and scanning, audio processing with signaling (CTCSS/DCS and data) scan, and full audio signaling and data processing.

The IC provides path, gain, and level settings - including two-point modulation facilities, pre- and de-emphasis, as well as limiting and channel filter selection. Advanced algorithms provide high-quality voice communication. It also supports the XTCSS signaling protocol, which provides additional over-air features including 'Quiet operation', auto-feature detection, and elite user-channels.

The CMX882 also includes an embedded fully-featured packet-data 1200/2400 baud modem, which uses FEC algorithms for error-free data transfer and auto baud rate detection for ease of use. The data packet used is suited for the transfer of GPS location data as well as SMS data.





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