CMX972 - CML

CMX972 Quadrature Demodulator

The CMX972 features a low-power quadrature IF/RF demodulator with wide operating frequency range and optimised power consumption. The demodulator is suitable for superheterodyne architectures with IF frequencies up to 300MHz and the device may be used in low IF systems or in those converting down to baseband. An on-chip PLL and VCO, together with uncommitte.

Features

 20
  – 300MHz IF/RF Demodulator
 10MHz Rx I/Q Bandwidth
 < 1 degree I/Q Phase Matching
 < 0.5 dB I/Q Gain Matching
 Low Power, 3.0V
  – 3.6V Operation
 Small 32-lead VQFN Package Applications
 Wireless Data Terminals
 HF/VHF and UHF Mobile Radio
 Avionics Radio Systems
 Software Defined Radio (SDR)
 Satellite Terminals n/c RXLO VCO P2 VCO P1 VCO VCO N1 N2 OA1O OA1N n/c n/c n/c n/c IFIN VCC RXIN RXIP Quadrature demodulator VCO 40-1000MHz Local oscillator switching Serial bus PLL and control OA1P VSS CSN OA2O OA2N OA2P RDATA SCLK RXQP RXQN n/c REFIN DO VCC SYNTH CDATA VDD.