The ADF4153A from Analog Devices is a Phase Locked Loop with Frequency 500 MHz to 4 GHz, Phase Noise -223 to -107 dBc/Hz, Operating Temperature -40 to 85 Degree C, PLL Current 0.001 to 24 mA, PLL Voltage 2.7 to 5.5 V. Tags: Surface Mount, Fractional-N PLL. More details for ADF4153A can be seen below.