The SOP-40310120-22-B1 from ERAVANT is a Phase Locked Oscillator with Frequency 40 GHz, Frequency Stability ±5 ppm, Output Power 18 to 20 dBm, Reference Frequency 10 MHz, 100 MHz, Reference Power -3 dBm to 3 dBm. Tags: Module with Connectors, PLDRO. More details for SOP-40310120-22-B1 can be seen below.