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Design examples fast track Digital Mobile Radio development

Maldon, Essex –30th August 2018 – CML Microcircuits is pleased to announce it is now offering increased design support for the rapidly-expanding global market digital mobile radio. With its latest product offerings, designers can now easily develop dual-mode (digital/analog) radios for wearable and personal radio formats operating at up to 2W and 5W, targeting short- and medium-range transmissions respectively.

As the market for voice radio operating within the licensed spectrum continues to transition from analog to digitally-encoded transmission, OEMs require solutions that can support both modes of operation. The SCT9389 is design example for a highly integrated dual-mode solution that comprises the SCT3268TD Digital Baseband Processor with embedded host controller, RF transceiver and RF power amplifier in a single small form factor design (48 x 35 mm). Designed specifically to comply with European standards, the SCT9389 employs CML Microcircuits’ proprietary direct conversion technology and is supplied with the entire protocol stack embedded within the device, including the physical layer, data link layer and call control layer. Adopting a proven RF solution significantly speeds development time particularly for those less familiar with PMR requirements.

The SCT9389 design supports analog (clear voice, CTCSS, DCS), digital voice (dPMR, DMR – private and group call), digital data (short message) and digital supplementary service (dPMR/DMR). To further support the transition from analog to digital, the SCT9389 design features automatic detection and switching between analog and digital modes. It is aimed at small (wearable) digital mobile radios operating at up to 2W system power.

In addition, CML Microcircuits has developed a range of reference designs that provide a turnkey solution for digital mobile radio design. Available to qualifying customers free of charge, the reference designs comprise Gerber files and Bill of Materials, as well as all firmware and software required to develop a dPMR/DMR/Analog mobile radio. As an example, the SCT9366D is a design example based on the SCT3258TD Digital Baseband Processor, suitable for devices intended to operate at up to 5W transmit power.

“By increasing our investment in solutions targeting Digital Mobile Radio (DMR) and digital Private Mobile Radio (dPMR), with support for legacy analog radio, CML Microcircuits is reinforcing its position as a market leader in this application space,” said David Brooke, CML Microcircuits Wireless Voice and Data Product Manager. “Our highly integrated solutions and associated reference designs give OEMs the fastest route to market possible, with the least risk and lowest BoM cost.”

About CML Microcircuits
CML Microcircuits is a world-leader in the design, development and supply of low-power analogue, digital and mixed-signal semiconductors for telecommunications systems globally.

The company’s wide and varied portfolio means that CML devices are used in an extensive range of industrial and commercial products for licensed and unlicensed wireless voice and data systems.

Focusing on narrowband communications, CML’s ICs are found in digital/analogue PMR/LMR, wireless data, satellite communications and marine radio applications, such as TETRA, DMR, dPMR, SCADA systems and Marine communications. The CML portfolio provides components supporting both RF and baseband functionality, encompassing both leading edge digital and legacy analogue systems.

In addition to our established range of devices, we are able to offer bespoke solutions to customers. This service includes design assistance, advice and first class technical support. Our FirmASIC® approach enables us to produce the optimum solution to a given design requirement. The outcome is a product offering that embraces a number of key technologies and delivers the result cost-effectively with fast time to market, ultimate flexibility and low risk.

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