CML Microcircuits helps fast track digital radio development

CML Microcircuits is supporting the global market digital mobile radio with a development kit to help designers develop dual-mode (digital/analogue) radios for wearable and personal radio formats operating at up to 2.0 and 5.0W, for short- and medium-range transmissions respectively.

Voice radio operating within the licensed spectrum continues to transition from analogue to digitally-encoded transmission, meaning that OEMs need a reference design that can support both modes of operation. The SCT9389 is a design example for an integrated dual-mode radio that comprises the SCT3268TD digital baseband processor with embedded host controller, RF transceiver and RF power amplifier in a single small form factor (48 x 35mm).

It is designed specifically to comply with European standards and uses CML Microcircuits’ proprietary direct conversion technology. The SCR9389 is supplied with the entire protocol stack embedded within the device, including the physical layer, data link layer and call control layer. According to CML, adopting a proven RF solution significantly speeds development time particularly for those less familiar with PMR requirements.

The SCT9389 design supports analogue (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 analogue to digital, the SCT9389 features automatic detection and switching between analogue and digital modes.

CML Microcircuits has also 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/analogue mobile radio. For example, the SCT9366D is a design example based on the SCT3258TD digital baseband processor, suitable for devices intended to operate at up to 5.0W transmit power.

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 a range of industrial and commercial products for licensed and unlicensed wireless voice and data systems.

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