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CMX983 Analogue Front End (AFE) For Digital Radios

Tue, 05/20/2014 - 11:46am
WDD Staff

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CML Microcircuits (UK) has announced the release of an Analogue Front End (AFE) for digital radios. The CMX983 is an Analogue Front End (AFE) IC that bridges the gap between a digital radio’s RF section and the DSP/FPGA. 

The CMX983 is suitable for radio systems employing modulation bandwidths up to 25.8 kHz, and it is particularly suited to satellite communication, high-performance wireless data, and professional two-way radio systems. It is highly configurable, supporting numerous sample rates and filtering characteristics. This configurability enables a high level of functionality, integration, and connectivity with CML's RF building block ICs. The CMX983 connects seamlessly with CML’s CMX994 Direct Conversion Receiver and the CMX998 Cartesian Feedback Loop Transmitter to provide a complete small form factor RF-to-digitised baseband solution operating at up to 1 GHz.

The CMX983 meets the low operating power requirements of new SDR based terminals and is powered from separate 3.3 and 1.8 V power supplies. A facility is provided to allow the PLL charge pumps to be operated at up to 4.75 V, providing low noise operation. It is available in a small 64-lead VQFN package.

Specifically designed to meet the needs of a Software Designed Radio (SDR), the CMX983:

  • Performs critical DSP-intensive functions.
  • Provides dual-channel analogue-to-digital and digital-to-analogue conversion.
  • Includes two RF fractional-N synthesisers.
  • Embeds a host of auxiliary ADCs and DACs for use within the radio system.

For more information visit cmlmicro.com.

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