The HMC951LP4E from Analog Devices is a RF Mixer with RF Frequency 5.6 to 8.6 GHz, LO Frequency 3 to 12.1 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 20 dB, Conversion Gain 13 dB. Tags: Surface Mount, I/Q Mixer, Down-Conversion Mixer. More details for HMC951LP4E can be seen below.