The CMX994, CMX994A, CMX994E, CMX994G from CML Micro is a family of direct conversion receiver ICs with PowerTrade; the ability to dynamically select power against performance modes to optimise operating trade-offs. ICs in the series include:
• CMX994 – Standard and low power modes.
• CMX994A – Standard and additional low power modes.
• CMX994E – Enhanced, standard and low power modes.
• CMX994G – Enhanced, standard and low power modes, 30 MHz guaranteed performance.
The CMX994/A/E/G offer exceptional blocking performance with typical values in the range
98 dB to 102 dB depending on the measurement method. All three devices include a broadband LNA with gain control followed by a high dynamic range, very high IIP2, I/Q demodulator.
The receiver baseband section includes amplifiers and precise, configurable bandwidth, baseband filter stages. LO generation is provided by an integer-N PLL and a VCO negative resistance amplifier; an external LO may also be used. LO dividers are provided for flexible multi-band operation.
The CMX994 series operates from a single 3,3 V supply over a temperature range of -40°C to 85°C and are available in a small 40-pin VQFN package.
Applications include analogue/digital multi-mode radio, software defined radio (SDR), data telemetry modems, and satellite communications.
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