The Si591 from Skyworks Solutions is a XO with Frequency 10 to 810 MHz, Supply Voltage 1.71 to 3.63 V, Frequency Stability ±7 ppm, ±20 ppm, ±25 ppm, ±30 ppm, ±50 ppm, Current 60 to 125 mA, Duty Cycle 45 to 55 %. More details for Si591 can be seen below.
