125 MHz LVPECL clock source for high-speed links
The DSC1102DI1-125.0000 is a standard XO (Standard) MEMS oscillator delivering a 125 MHz LVPECL output — the differential signal level that drives Gigabit Ethernet PHYs, PCIe reference clocks, and high-speed ADC/DAC sampling clocks with the tight skew and jitter margins those links demand. The MEMS resonator is inherently more shock- and vibration-tolerant than a quartz crystal — a practical advantage in portable instrumentation or equipment mounted on moving machinery.
Supply voltage flexibility and power-down savings
Maximum supply current is 58 mA when active; the standby (power down) function drops that to 95 µA, letting a microcontroller or FPGA gate the clock off during idle periods and save board power in duty-cycled designs.
No pin-compatible second source is listed by Microchip, but the DSC1102 family includes other stability grades and output types if the system requirements tighten.
Housed in a 6-SMD, No Lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm. The no-lead construction means the solder joints are under the package body — good for space savings, but the pad layout and stencil aperture need to match the land pattern in the datasheet to avoid open joints. Pin 1 orientation is marked on the package top; the part reflows on a standard FR-4 board with a 0.50 mm pitch. The exposed pad on the bottom provides a low-thermal-resistance path to the board, so a thermal via under the pad helps if the oscillator sits near a hot regulator.