The ADF4355-3 from Analog Devices is a Frequency Synthesizer with Frequency 51.565 MHz to 6.6 GHz, Reference Frequency 10 to 600 MHz, Output Power 8 dBm, Supply Voltage 1.8 to 3.3 V, Current 146 mA. Tags: Surface Mount, PLL Frequency Synthesizer. More details for ADF4355-3 can be seen below.