The Si513 from Silicon Labs is a XO with Frequency 0.1 to 250 MHz, Supply Voltage 1.8 to 3.3 V, Frequency Stability +/-30 - 100 ppm, Current 17 mA, Jitter Period Jitter: 1 ps(RMS), Phase Jitter: 0.8 ps(RMS). Tags: Surface Mount. More details for Si513 can be seen below.