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RF/Microwave  

Audio processor integrates scrambler for two-way radio

Posted: 15 Apr 2008     Print Version  Bookmark and Share

Keywords:two-way radios  integrated audio processor  signalling processor 

CML Microcircuits has introduced the CMX138, an integrated audio processor designed primarily for analogue "leisure" two-way radio products (FRS, MURS, PMR446 and GMRS). The highly integrated CMX138 audio scrambler/sub-audio signalling processor features a user-programmable frequency inversion half-duplex audio scrambler, and a flexible audio processing path, with concurrent audio and signalling operations handled by the integrated sub-audio signalling processor (selectable to CTCSS and DCS modes).

Other features include an auxiliary ADC channel, auxiliary DAC interface with optional RAMDAC to facilitate transmitter power ramping, an auxiliary system clock output and transmit output for single-point-modulation.

The CMX138 offers low-power (3V to 3.6V) operation with power-save modes. The device is housed in a 28-pin (E1) TSSOP package.

Pricing is Rs.161.30 ($4) in quantities of 1,000.

Product is available from sock.

- Gina Roos
eeProductCenter





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