The NCPS3-355 from Roswin is a Phase Locked Loop with Frequency 346 to 364 MHz, Phase Noise -140 to -83 dBc/Hz, Harmonic Suppression -22 dBc, Operating Temperature -40 to 85 Degree C, Phase Noise at 1 KHz -83 dBc/Hz. Tags: Surface Mount, Integer-N PLL. More details for NCPS3-355 can be seen below.