The J0520N from Eclipse MDI is a RF Mixer with RF Frequency 0.5 to 2 GHz, LO Frequency 0.5 to 2 GHz, IF Frequency DC to 0.5 GHz, Conversion Loss 6.5 to 9.5 dB, P1dB 7 dBm. Tags: Module with Connectors, Double Balanced Mixer, Down-Conversion Mixer. More details for J0520N can be seen below.