The RWPR2-2189JS from Roswin is a Phase Locked Loop with Frequency 2188.5 MHz, Phase Noise -151 to -76 dBc/Hz, Output Power 2 dBm, Harmonic Suppression -33 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for RWPR2-2189JS can be seen below.