The HMC571 from Analog Devices is a Down Converter with RF Frequency 21 to 25 GHz, IF Frequency 0 to 3.5 GHz, Conversion Gain 11 dB, Image Rejection 24 dB, P1dB -7 to -9 dBm. Tags: Surface Mount, I/Q Downconverter. More details for HMC571 can be seen below.