The HMC554ALC3B from Analog Devices is a RF Mixer with RF Frequency 10 to 20 GHz, LO Frequency 10 to 20 GHz, IF Frequency DC to 6 GHz, Conversion Loss 6.5 to 11.5 dB, Noise Figure 9 to 9.5 dB. Tags: Surface Mount, Double Balanced Mixer, Up-Conversion Mixer, Down-Conversion Mixer. More details for HMC554ALC3B can be seen below.