The HMC620LC4 from Analog Devices is a RF Mixer with RF Frequency 3to7 GHz, LO Frequency 3.0 to 7.0 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 27 dB, Conversion Loss 8 dB. Tags: Surface Mount, I/Q Mixer, Image Reject Mixer. More details for HMC620LC4 can be seen below.