The DSC1121DM2-125.0000 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a fixed 125 MHz CMOS output with ±25 ppm frequency stability across the full -55°C to 125°C military temperature range.
Supply voltage flexibility and enable/disable function
The 2.25V to 3.6V supply range (cite:) lets the oscillator run directly from a 2.5V or 3.3V rail without an intermediate LDO — useful when the same BOM must span multiple voltage domains.
