The MFSH400800-100 from Synergy Microwave Corporation is a Frequency Synthesizer with Frequency 4 to 8 GHz, Step Size 1 MHz, Reference Frequency 10 MHz, Output Power 3 dBm, Supply Voltage 5 to 20 V. Tags: Surface Mount, PLL Frequency Synthesizer. More details for MFSH400800-100 can be seen below.