The SLSM5-1625 from Luff Research, an Ironwave Technologies Company is a Frequency Synthesizer with Frequency 16 to 25 GHz, Step Size 1 kHz, Reference Frequency 10 MHz, Output Power 13 to 15 dBm, Output Power Variation ±2 dB. Tags: Module with Connectors, PLL Frequency Synthesizer. More details for SLSM5-1625 can be seen below.