CMX148 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. The device is intended for use in general leisure and professional PMR terminals. prehensive audio processing facilities include plete audio processing, filtering, panding, preor de-emphasis and frequency inversion scrambling.
CMX148 Key Features
- Concurrent Audio/Signalling/Data Operations
- plete Audio-band Processing: o Selectable Audio Processing Order o Pre and De-emphasis o Selectable 2.55/3.0 kHz Filteri
- 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
- Dual Auxiliary ADC, 4 Multiplexed Inputs
- 4 x Auxiliary DACs
- Dual Programmable System Clock Outputs
- Tx Outputs for Single, Two-Point or I/Q