The RWPW7-559 from Roswin is a Phase Locked Loop with Frequency 499 to 619 MHz, Phase Noise -140 to -77 dBc/Hz, Output Power 5 dBm, Harmonic Suppression -5 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL. More details for RWPW7-559 can be seen below.