The NCPC1-1900 from Roswin is a Phase Locked Loop with Frequency 1890 to 1910 MHz, Phase Noise -141 to -75 dBc/Hz, Output Power 5 dBm, Harmonic Suppression -29 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Integer-N PLL. More details for NCPC1-1900 can be seen below.