This popular low-voltage mixer, wideband FM IF system with high speed RSSI and power down mode is widely used in many applications. The SA636 can be used in the 500 MHz RF band and 25MHz wideband IF. Common applications are set-top boxes, and radar detectors. The application note is available on the web. The SA636DK, with its higher limiting IF at 10.7MHz may be successfully used as a single conversion UHF and VHF receiver. Also, it may be used as the backend receiver in higher frequency dual conversion receiver.