The NCPC1-1690D from Roswin is a Phase Locked Loop with Frequency 1680 to 1700 MHz, Phase Noise -145 to -74 dBc/Hz, Output Power 9 dBm, Harmonic Suppression -34 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL. More details for NCPC1-1690D can be seen below.