The ADF4351 from Analog Devices is a Phase Locked Loop with Frequency 35 MHz to 4.4 GHz, Phase Noise -221 to -83 dBc/Hz, Output Power -4 to 5 dBm, Harmonic Suppression -20 to -10 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL, Fractional-N PLL. More details for ADF4351 can be seen below.