The LFSW80210-50 from Synergy Microwave Corporation is a Frequency Synthesizer with Frequency 800 MHz to 2.1 GHz, Step Size 500 KHz, Reference Frequency 10 MHz, Output Power 4 dBm, Supply Voltage 5 V. Tags: Surface Mount, PLL Frequency Synthesizer. More details for LFSW80210-50 can be seen below.
