The HMC215LP4 from Analog Devices is a RF Mixer with RF Frequency 1.7 to 4.0 GHz, LO Frequency 1.7 to 4.0 GHz, IF Frequency DC to 1 GHz, Conversion Loss 8 dB, LO Drive - Power 4 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC215LP4 can be seen below.