The CMD257C4 is a surface mount compact I/Q mixer with a RF/LO frequency from 6 to 10 GHz and IF Frequency from DC to 3.5 GHz. It has a low conversion loss of 5.5 dB, high LO to RF isolation of 40 dB, and an input IP3 of 25 dBm across the bandwidth. The CMD257C4 can be configured as an image reject mixer or single sideband upconvertor by utilizing two double balanced mixer cells and a 90 degree hybrid. It is available in a 4 x 4 mm ceramic QFN surface mount package and provides an image rejection of 30 dB. An external IF hybrid is needed to complete the image rejection.
