The HMC552LP4 from Analog Devices is a RF Mixer with RF Frequency 1.6 to 3.0 GHz, LO Frequency 1.6 to 3.0 GHz, IF Frequency DC to 1 GHz, Conversion Loss 8 dB, P1dB 16 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC552LP4 can be seen below.