Description
The CMX148 is a half-duplex, audio, signalling and data processing IC for use in PMR systems that utilise the host µC to perform signalling, including CTCSS/DCS encoding/decoding.
Features
- Concurrent Audio/Signalling/Data Operations.
- Complete Audio-band Processing: o Selectable Audio Processing Order o Pre and De-emphasis o Selectable 2.55/3.0 kHz Filtering o Selectable Audio HPF Cut-off o Compandor o Limiter.
- Programmable Voice Scrambler.
- MSK/FFSK Data Modem with Packet or Freeformat Modes with FEC, CRC, Interleaving and Scrambling.
- DTMF and Audio Tone Encoder/Decoder.
- Routing to Support Host µController Signalling.
CMX148-ConsumerMicrocircuitsLimited.pdf
