CMX983

CML Microcircuits COMMUNICATION SEMICONDUCTORS CMX983 Analogue Front End (AFE) for Digital Radio D/983/8 June 2018 Features  Rx channel  Two 16-bit Σ-Δ ADCs  Programmable Channel Filter  Tx Channel  Two 14-bit Σ-Δ DACs  Programmable Channel Filter  RF Support  Two 2.1GHz Fractional-N Synthesisers  Auxiliary Functions  10-bit ADC supporting 10 inputs  Five Analogue Comparators  10-bit DACs driving 9 outputs  DSP Interface  C-BUS Control and Configuration Port  Fast Serial Interface for Rx/Tx Data Provisional Information  Duplex and Half duplex operation  Narrow bandwidth and wide bandwidth operating modes  Direct connection to  CMX998 Cartesian Loop Transmitter  CMX994 Direct Conversion Receiver  Low power operation  3.3V and 1.8V supplies  Small 64-pin VQFN Package Applications  Software Defined Radio (SDR)  Satellite Communication  Wireless Data Terminals  Digital PMR/LMR Radio  TETRA, DMR, PDT, APCO P25, etc.  2018 CML Microsystems Plc Analogue Front End (AFE) for Digital Radio CMX983 1 Brief Description The CMX983 is an Analogue Front End (AFE) IC that bridges the gap between a digital radio’s RF section and the DSP. Specifically designed to meet the needs of a Software Defined 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, and embeds a host of auxiliary ADCs and DACs for use within the radio system...