Common platform processor supports all major PMR systems

12th September 2016
Daisy Stapley-Bunten

A provider of low-power semiconductor solutions for global wireless data and two-way radio communications markets, CML Microcircuits, has further enhanced the Function Image suite of its CMX7241/CMX7341 PMR Common Platform Processors. All major PMR systems are now supported: DMR, dPMR, NXDN, ARIB STD-T102, ARIB STD-T98 and legacy Analogue PMR, all with automatic digital/analogue detection.

This CMX7241/CMX7341 PMR common platform processors now provide the ultimate flexibility and enable a radio manufacture to build a single platform radio that supports many different PMR standards.

About the CMX7241/CMX7341 PMR common platform processor
With an embedded audio codec (ADC/DAC) the devices provide a complete baseband solution with a flexible interface to support both software and hardware implementations of the AMBE+2 Vocoder. A high level of advanced functionality is included that minimises both host interactions and host real time control constraints. The CMX7241/CMX7341 PMR Common Platform Processors can deliver FDMA digital PMR/LMR, 2-slot TDMA digital PMR/LMR and legacy analogue PMR/LMR. Based on CML's FirmASIC component technology, a Function Image is uploaded into the device to determine the overall functions and operating characteristics.

PMR chipset solution provides a fast development path to entering the DMR market
The PMR chipset comprises a low power RF Direct Conversion Receiver (DCRx) IC (CMX994A/E) and a PMR Common Platform Processor (CMX7341) with DMR/dPMR/NXDN/ARIB STD-T102/ARIB STD-T98 Air Interface coding and analogue PMR embedded within Function Images. The CMX994A/E and CMX7341 chipset enables a highly integrated, cost effective radio to be developed quickly with a low risk development route, for radio manufacturers planning to enter the Digital PMR market space.

I/Q and limiter discriminator receiver supported
Manufacturers preferring to evolve their current radio designs and not wishing to do a ground-up redesign can also take advantage of the CMX7241/CMX7341 benefits with their LD receiver capability. The PMR Chipset ICs are available in very small VQFN packages occupying a minimal PCB footprint and in conjunction with a suitable host microcontroller a small, highly integrated PMR radio can be realised.

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