The MM8221 from Teledyne Microwave Solutions is a RF Mixer with RF Frequency 2000 to 8000 MHz, LO Frequency 2000 to 8000 MHz, IF Frequency 0 to 1500 MHz, Conversion Loss 5 dB, LO Drive - Power 7 dB. Tags: Surface Mount. More details for MM8221 can be seen below.