MEMS oscillator at 125 MHz — what it replaces
The DSC1101CL2-125.0000 is a standard MEMS-based oscillator (XO) that generates a 125 MHz CMOS clock from a silicon resonator instead of a quartz crystal. The MEMS die and the PLL are sealed in a 6-VDFN package measuring 3.20 mm x 2.50 mm — the same footprint as many quartz oscillators, so it drops onto existing PCB layouts without a board spin. Frequency stability is held to ±25 ppm across the full -40 to +105 °C industrial range, which covers outdoor telecom cabinets, factory-floor controllers, and engine-bay electronics where a quartz crystal would drift more with temperature.
Supply voltage and power-down mode
Active current draw is 35 mA max at 125 MHz; the standby (power-down) function drops that to 95 µA max by disabling the output and internal PLL, which matters for battery-backed real-time clocks or wake-on-event systems.
Lifecycle status — active and design-in ready
This part is safe to specify for new production runs and does not carry a last-time-buy deadline.