The NCPC1-998B from Roswin is a Phase Locked Loop with Frequency 987.5 to 1007.5 MHz, Phase Noise -148 to -76 dBc/Hz, Output Power 5 dBm, Harmonic Suppression -26 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL. More details for NCPC1-998B can be seen below.