The SiT3542 from SiTime is a MEMS Oscillator with Frequency 340 to 725 MHz, Supply Voltage 2.25 to 3.63 V, Supply Current 63 to 67 mA, Phase Noise -152.4 to -85.1 dBc/Hz, Frequency Stability ±20, ±25, ±50 ppm. Tags: Surface Mount. More details for SiT3542 can be seen below.