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CMX138A Datasheet Audio Scrambler And Sub-audio Signalling Processor

Manufacturer: Consumer Microcircuits Limited

Overview: CML Microcircuits MUNICATION SEMICONDUCTORS CMX138A Audio Scrambler and Sub-Audio Signalling Processor D/138A/4 October 2014 CMX138A: Audio Scrambler and Sub-Audio Signalling Processor with Auxiliary System Clock, ADC.

Datasheet Details

Part number CMX138A
Manufacturer Consumer Microcircuits Limited
File Size 1.49 MB
Description Audio Scrambler and Sub-Audio Signalling Processor
Datasheet CMX138A-ConsumerMicrocircuitsLimited.pdf

General Description

The CMX138A is a half-duplex, audio scrambler and sub-audio signalling processor IC for Analogue Twoway Radio applications.

This makes it a suitable device for the leisure radio markets (FRS, MURS, PMR446 and GMRS).

This device provides a user programmable frequency inversion audio scrambler, panding and pre/deemphasis – performing simultaneous processing of Sub-audio and In-band signalling.

Key Features

  • Programmable Audio Scrambler.
  • Concurrent Audio/Signalling Operations.
  • Full Audio-band Processing: Pre and De-emphasis, Compandor, Scrambler and Selectable 2.55/3 kHz Filters.
  • Auxiliary ADC and Auxiliary DAC.
  • Selectable Audio Processing Order.
  • Sub-audio Signalling: CTCSS, DCS.
  • Auxiliary System Clock Output.
  • Tx Output for Single-point Modulation.
  • Low-power (3.0V to 3.6V) Operation.
  • Flexible Powersave Modes.
  • C-BUS Serial Interface to Host µC.

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CMX138A Distributor