The CHR3861-QEG from United Monolithic Semiconductors is a RF Mixer with RF Frequency 5.90-9.00 GHz, LO Frequency 3.00-12.50 GHz, IF Frequency DC-3.5 GHz, Conversion Loss 12 dB, LO Drive - Power 0 dBm. Tags: Surface Mount, Down-Conversion Mixer. More details for CHR3861-QEG can be seen below.