Description
The CMX138A is a half-duplex, audio scrambler and sub-audio signalling processor IC for Analogue Twoway Radio applications.
performing simultaneous processing of Sub-audio and In-band signalling.
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.
CMX138A-ConsumerMicrocircuitsLimited.pdf
