Low-power digital PMR processor adds new function images
June 14, 2012 // Paul Buckley
CML Microcircuits has added dPMR (Digital Private Mobile Radio) modes 1, 2 and 3 and ARIB STD-T102 to the CMX7131 and CMX7141 digital PMR processors.
The devices are now market-leading digital PMR processors supporting six systems and growing; dPMR TS 102 490, DCR ARIB-T98, NXDN, Analog PMR and now dPMR TS 102 658 and ARIB STD-T102.
The dPMR Mode 1, 2 and 3 Function Image implements a half-duplex 4FSK modem and a large proportion of the dPMR Air Interface, Data Link and Call Control layers. In conjunction with a suitable host and a limiter/discriminator-based RF transceiver, a compact, low-cost, low-power digital PMR radio conforming to ETSI's dPMR standard TS 102 658 can now be realised.
The 7131/7141FI-2.x Function Image implements a half-duplex 4FSK modem and a large proportion of the DCR Air Interface, Data Link and Call Control layers. In conjunction with a suitable host and a limiter/discriminator based RF transceiver, a compact, low cost, low power digital PMR radio conforming to ARIB’s T98 Digital Convenience Radio standard can be realised. Dual mode, analogue/digital PMR operation can also be achieved with the CMX7131/CMX7141.
The embedded functionality of the CMX7131/CMX7141 managing voice and data systems autonomously, including CMX6x8 Vocoder control, minimises host microcontroller interactions enabling the lowest operating power and therefore the longest battery life for a dPMR radio. Third party vocoders are also supported.
The CMX7131 is identical in functionality to the CMX7141 with the exception that two on-chip RF synthesisers have been added.
The devices are available now, have flexible power-saving modes and are available in both LQFP and VQFN packages.
Visit CML Microcircuits at www.cmlmicro.com
Endoscopic measurement method allows quieter, more reliable jet engines
December 21, 2014
A team of scientists from German aerospace research centre DLR has developed an optical measurement method that enables direct ...
Pathway to converting sunlight to electricity is indentified
How industrial IoT will drive the MEMS market indirectly
Successful with phones & drones, Parrot ponders farming
Qimonda's late legacy: 28nm FeRAM
Volvo airs cloud-based cyclist protection system
December 19, 2014
The facts are disturbing: 50 percent of all cyclists killed in Europe's traffic have collided with a car. In Germany, the ...
Sony transforms eyewear into smart augmented reality devices
Harman grabs hidden infotainment gem S1nn
Alps Electric puts cash into Qualtre
- New life for Embedded systems in the Internet of Things
- Virtualization and the Internet of Things
- RF/Microwave Instrumentation “S” Series Amplifiers
- Application Guide to RF Coaxial Connectors and Cables
InterviewCEO interview: Bosch's IoT startup is all about the system
Thorsten Mueller, CEO of Bosch Connected Devices and Solutions GmbH (Reutlingen, Germany), has been guiding the latest startup subsidiary of Robert Bosch GmbH since 2013 when he started the initiative ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Arrow Electronics is giving away ten BeMicro Max 10 FPGA evaluation boards together with an integrated USB-Blaster, each package being worth 90 Euros, for EETimes Europe's readers to win.
Designed to get you started with using an FPGA, the BeMicro Max 10 adopts Altera's non-volatile MAX 10 FPGA built on 55-nm flash process.
The MAX 10 FPGAs are claimed to revolutionize...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.