The HMC558A from Analog Devices is a RF Mixer with RF Frequency 5.5 to 14 GHz, LO Frequency 5.5 to 14 GHz, IF Frequency DC to 6 GHz, Conversion Loss 7.5 to 10 dB, Noise Figure 7.5 to 10 dB. Tags: Surface Mount, Double Balanced Mixer, Up-Conversion Mixer, Down-Conversion Mixer. More details for HMC558A can be seen below.