The MDL090 from R & K Company Limited is a RF Mixer with LO Frequency 1.3 to 2.3 GHz, IF Frequency DC to 250 MHz, Conversion Loss 6.5 to 9 dB, LO Drive - Power 7 dBm, P1dB 3 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MDL090 can be seen below.