The HMC585MS8G from Analog Devices is a RF Mixer with RF Frequency 0.4 to 0.65 GHz, LO Frequency 300 to 750 MHz, IF Frequency DC to 0.25 GHz, Conversion Loss 9 dB, P1dB 22 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC585MS8G can be seen below.