The Si513 from Skyworks Solutions is a XO with Frequency 100 kHz to 250 MHz, Supply Voltage 1.71 to 3.63 V, Frequency Stability ±20 ppm, ±25 ppm, ±30 ppm, ±50 ppm, ±100 ppm, Current 18 to 43 mA, Duty Cycle 48 to 52 %. More details for Si513 can be seen below.