The ADF4108S from Analog Devices is a Phase Locked Loop with Frequency 1 to 7 GHz, Phase Noise -81 dBc/Hz, Operating Temperature -55 to 125 Degree C, PLL Current 17 mA, PLL Voltage 3.2 to 3.6 V. Tags: Surface Mount, Integer-N PLL. More details for ADF4108S can be seen below.