The CGY2181UH/C1 from MACOM is a RF Mixer with LO Frequency 1 to 4.5 GHz, IF Frequency DC to 2.5 GHz, Conversion Loss 7 to 10 dB, Noise Figure 7 dB, LO Drive - Power 17.5 dBm. Tags: Die, Double Balanced Mixer. More details for CGY2181UH/C1 can be seen below.