The DSC1101DE2-049.1520 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1101 series, delivering a 49.152 MHz CMOS output with ±25ppm frequency stability. Its supply voltage range of 2.25V to 3.6V allows direct connection to 2.5V or 3.3V rails without an intermediate regulator, simplifying power distribution on the board. Maximum current draw is 95µA, making it suitable for battery-operated equipment where every microamp matters.
MEMS resonator advantages over quartz
Unlike traditional quartz crystal oscillators, the DSC1101DE2-049.1520 uses a MEMS resonator, which inherently offers higher resistance to shock and vibration and faster startup times — a practical benefit for portable or handheld equipment that sees mechanical stress. The 6-VDFN package (2.50mm x 2.00mm footprint) occupies less board area than a typical quartz can, and the surface-mount profile suits automated assembly lines.