The Si536 from Silicon Labs is a XO with Frequency 100 MHz to 312.5 MHz, Supply Voltage 2.5 to 3.3 V, Temperature Stability +/-20 to 31.5 ppm, Current 81 mA, Jitter Period Jitter: 2 ps(RMS), Phase Jitter: 0.19 ps(RMS). Tags: Surface Mount. More details for Si536 can be seen below.