Chipset solution provides a fast path to entering the DMR market

4th November 2015
Posted By : Jordan Mulcare
Chipset solution provides a fast path to entering the DMR market

CML Microcircuits has released a DMR (Digital Mobile Radio) chipset solution. The DMR chipset comprises a low power RF Direct Conversion Receiver (DCRx) IC (CMX994A) and a PMR Common Platform Processor (CMX7341) with the DMR Air Interface and coding embedded within a Function Image. The CMX994A and CMX7341 chipset along with DMR (7241/7341FI-2.x) Function Image enables a highly integrated radio to be developed quickly, cost effectively and providing a low risk development route for radio manufacturers planning to enter the DMR market space.

The 7241/7341FI-2.x Function Image implements much of the DMR Air Interface protocol including the physical layer 1 and data link layer 2 and is compliant with the ETSI TS 102 361 DMR standard. A high level of advanced functionality is included that minimises both host interactions and host real-time control constraints. The CMX7341 includes an embedded audio codec (ADC/DAC) with a flexible interface to support both software and hardware implementations of the AMBE+2 Vocoder. 

The CMX994A is CML’s new Direct Conversion Receiver IC.  The device PowerTrade feature provides a flexible power control facility to optimise current consumption in normal and stand-by operating modes. CMX994A connects directly to the CMX7341 PMR Common Platform Processor with the DMR Function Image automatically setting up and managing the RF section. The DMR Chipset ICs are available in very small VQFN packages occupying a minimal PCB footprint and in conjunction with a suitable host MCU a small, highly integrated DMR radio can be realised.

The CMX7241/CMX7341 PMR Common Platform Processor can deliver FDMA digital PMR/LMR, 2-slot TDMA digital PMR/LMR and legacy analogue. Based on CML's proprietary component technology, a Function Image can be uploaded into the device to determine the overall functions and operating characteristics.

You must be logged in to comment

Write a comment

No comments

Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

SPS IPC Drives 2019
26th November 2019
Germany Nuremberg Messe
Vietnam International Defense & Security Exhibition 2020
4th March 2020
Vietnam National Convention Center, Hanoi