The MDS090 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 to 8.5 dB, LO Drive - Power 20 dBm, P1dB 15 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MDS090 can be seen below.