The CCS575S from Crystek Corporation is a Clock Oscillator with Frequency 315 MHz to 1 GHz, Supply Voltage 3.15 to 3.45 V, Current 20 to 30 mA, Output Power 7 dBm, Load Capacitance 15 pF. Tags: Surface Mount, SAW, Low Phase Noise. More details for CCS575S can be seen below.