The Si554 from Silicon Labs is a VCXO with Frequency 10 MHz to 1.4 GHz, Temperature Stability +/-20 to 100 ppm, Supply Voltage 1.8 to 3.3 V, Current 90 mA, Jitter Phase Jitter: 0.5 ps, Period Jitter: 2 ps. Tags: Surface Mount. More details for Si554 can be seen below.