The CMX983 is an Analogue Front End (AFE) IC that bridges the gap between a digital radio’s RF section and the DSP/FPGA.
Specifically designed to meet the needs of a Software Defined Radio (SDR). It is suitable for radio systems employing modulation bandwidths up to 50kHz in wideband mode and up to 25kHz in narrowband mode.
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.
The device is widely used in high performance wireless data systems including: military and satellite communication, professional two-way radio and wireless telemetry applications.
Rx channel
– Two 16-bit Σ-Δ A/D Converters
– Programmable Channel Filter
Tx Channel
– Two 14-bit Σ-Δ D/A Converters
– Programmable Channel Filter
RF Support
– Two 2.1GHz Fractional-N Synthesisers
Auxiliary Functions
– 10-bit A/D Converter supporting (8-inputs)
– Five Analogue Comparators
– Nine 10-bit D/A Converters
DSP Interface
– BUS Control and Configuration Port
– Fast Serial Interface for Rx/Tx Data
Duplex and Half duplex operation
Direct connection to:
– CMX998 Cartesian Loop Transmitter
– CMX994 Direct Conversion Receiver
Low power operation
– 3.3V and 1.8v supplies
Small 64-lead VQFN Package