CMX983 Datasheet | Consumer Microcircuits Limited

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 parators - 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 munication - Wireless Data Terminals - Digital PMR/LMR Radio - TETRA, DMR, PDT, APCO P25, etc.  2018 CML Microsystems Plc Analogue Front End (AFE) for Digital Radio 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. The CMX983 meets the low operating power requirements of SDR terminals and is powered from separate 3.3V and 1.8V power supplies. A facility is provided to allow the synthesiser charge pumps to be operated at up to 5V, providing low noise operation. The device is available in a small 64-lead VQFN package.  2018 CML Microsystems Plc D/983/8 Analogue Front End (AFE) for Digital...