The IR2640NI7B from Narda-MITEQ is a RF Mixer with RF Frequency 26000 to 40000 MHz, LO Frequency 26000 to 40000 MHz, IF Frequency 40 to 80 MHz, Image Rejection 18 dB, Conversion Loss 9 dB. Tags: Module with Connectors. More details for IR2640NI7B can be seen below.