The DSA61XX from Microchip Technology is a XO with Frequency 0.0035 to 100 MHz, Supply Voltage 1.71 to 3.63 V, Frequency Stability ±20 ppm, ±25 ppm, ±50 ppm, Current 3.0 mA, Duty Cycle 45 to 55 %. Tags: Surface Mount. More details for DSA61XX can be seen below.