The XTN312100.000000I from Renesas is a Phase Locked Loop with Frequency 15 to 725 MHz, Phase Noise -158.08 to -91.05 dBc/Hz, Operating Temperature -40 to 85 Degree C, Phase Noise at 1 KHz -108.19 dBc/Hz, Phase Noise at 1 MHz -139.46 dBc/Hz. Tags: Surface Mount. More details for XTN312100.000000I can be seen below.