125 MHz MEMS oscillator for harsh environments
The DSC1121AM2-125.0000 is a Microchip MEMS-based XO (Standard) oscillator delivering a 125 MHz CMOS clock output with ±25 ppm frequency stability across the full -55°C to 125°C military temperature range. The 2.25V to 3.6V supply range means it can run directly from a 2.5V or 3.3V rail without an external regulator—one less part in the timing tree. Enable/Disable function lets the system shut down the oscillator for power savings during idle periods; the disable current max is 22 mA vs 35 mA active.
Listed as Active, this part is in production and available for new designs. Quoted to order against the BOM quantity through independent distribution. The 6-SMD no-lead exposed pad package mates with standard reflow profiles; no special handling beyond normal MSL precautions.
Temperature range and deployment fit
MEMS resonator provides better shock and vibration immunity than a quartz crystal, reducing the risk of frequency jumps in high-vibration environments like launch or industrial motor drives.