CML Microcircuits and CDI are pleased to announce the release of an Analog Front End (AFE) for digital radios.
The CMX983 is an Analog Front End (AFE) IC that bridges the gap between a digital radio’s RF section and the DSP/FGPA. Specifically designed to meet the needs of a Software Defined Radio (SDR), the CMX983 performs critical low-level DSP functions and provides dual channel Analog to Digital (A/D) and Digital to Analog (D/A) conversion functions. The CMX983 also includes two high performance fractional-N synthesizers and a host of embedded auxiliary A/D and D/A converters for general-purpose use.
The CMX983 is suitable for radio systems employing modulation bandwidths up to 25.8kHz, and it is especially suited to satellite communication, high performance wireless data and professional two-way radio systems. The CMX983 is highly configurable, supporting numerous sample rates and filtering characteristics. This configurability enables a high level of functionality, integration and connectivity with 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-digitized baseband solution operating at up to 1GHz.
The CMX983 meets the low operating power requirements of new SDR based terminals and is powered from separate 3.3V and 1.8V power supplies. The PLL charge pumps can be operated up to 4.75V in order to provide low phase-noise operation.