Digital/Analogue Two-Way Radio Products
CMX7158 – Duplex Audio CMX7158 – Duplex Audio Scrambler
The CMX7158 is a full-duplex, frequency inversion audio scrambler IC. This makes it a suitable device for use in multi-function 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.
There are flexible power saving modes and the production devices will be supplied as a FirmASIC® Function Image format in a 48-pin VQFN Q3 package suitable for use with the PE0402 evaluation kit.
The device is realised using CML’s proprietary FirmASIC® component technology. A Function Image™ that defines the devices functionality is loaded at power-up, either from a host controller connected over the C-BUS interface or an attached serial flash memory device.
Devices are available through our Distributor Network.
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
- Tx Enable and Rx Enable outputs
- Flexible Powersave Modes
- Low-power 3.0 to 3.6V Operation
- Small 48-pin Q3 VQFN Package
Applications
- Cellular Radio
- Bluetooth communication headsets
- PMR/LMR radio systems
- Wireless access control systems
Power Supply Requirement
- 3.0 – 3.6V
Downloads
Design Resources
PE0402 |
The PE0402 Platform Evaluation Kit is designed to assist in the evaluation and application development of the CMX704x/CMX714x range of FirmASIC products. | PE0402_Product_Preview PE0402_User_Manual PE0402_Schematics |
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PE0003 |
The PE0003 Evaluation Kit Interface Card is a global interface system for use with evaluation kits for CML’s new generation ICs, including FirmASIC™ based products. This greatly simplifies the approach to the evaluation and design-in process. | PE0003_Product_Page | |