CMX983 Datasheet, PDF (2/93 Pages) CML Microcircuits – Programmable Channel Filter

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 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, 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-based terminals and is powered from
separate 3.3V and 1.8V power supplies. A facility is provided to allow the PLL charge pumps to be operated
at up to 5V, providing low noise operation. The device is available in a small 64-lead VQFN package.
 2015 CML Microsystems Plc
2
D/983/6