CMX7158 Description
The CMX7158 is a full-duplex, frequency inversion audio scrambler IC. This makes it a suitable device for use in multifunction audio systems as well as mobile and hand portable Cellular / Bluetooth / PMR / LMR radio systems. The device provides additional functionality to facilitate implementation including DTMF and Selcall signalling, VOX detection on both channels and a MIC AGC.
CMX7158 Key Features
- Fully independent Tx and Rx paths
- Programmable Inversion points
- MIC path AGC
- VOX detection
- DTMF encoder / decoder
- Selcall encoder / decoder
- Digital Gain Adjustment
- C-BUS Serial Interface to Host µController
- Bypass mode for HD Audio (up to 7kHz)
- Clear Mode