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dPMR processor touts GMSK functionality

Posted: 23 Jan 2008 ?? ?Print Version ?Bookmark and Share

Keywords:digital PMR processor? GMSK functionality? data modem IC?

CML Microcircuits has launched the CMX7143 digital PMR (dPMR) processor, with 4-Level FSK operation and GMSK functionality.

The CMX7143 is a highly integrated and adaptable multimode wireless data modem IC built on CML's proprietary FirmASIC component technology. The CMX7143 addresses global market requirements for multimode wireless data connectivity with the ability to implement different wireless data schemes.

The CMX7143 is aimed at Machine-to-Machine (M2M) and Software Defined Radio (SDR) product manufacturers. The CMX7143 is also targeted at Point-to-Point telemetry systems, traffic location systems and any other wireless data modem applications that require easily configurable multi-mode modem flexibility.

CML's Function Image files configure the CMX7143's subsystems, which are uploaded during device initialization when the product's function and feature set are defined. A Function Image can be loaded automatically from an external EEPROM or host MCU over the product's C-BUS serial interface.

Features include fast data acquisition, 4.8Kbit/s to 19.2Kbit/s data rates, Automatic Frame Sync Detection (AFSD), flexible raw and packet data modes, soft decision decoding, RSSI processing (for Listen Before Transmit Applications) and a C-BUS serial interface to the host MCU.

The CMX7143 is available in a small, low power (3V to 3.6V with flexible powersave modes), 48-pin VQFN or LQFP package.

- Ismini Scouras

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