The RWPRL1-1900 from Roswin is a Phase Locked Loop with Frequency 1500 to 2300 MHz, Phase Noise -139 to -63 dBc/Hz, Output Power 6 dBm, Harmonic Suppression -24 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL. More details for RWPRL1-1900 can be seen below.