The DSC1121DE1-010.0000 is a 10 MHz MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a CMOS output with ±50 ppm frequency stability across its -20°C to 70°C operating range. Its 2.25V to 3.6V supply range means the same part can be dropped into a 2.5V or 3.3V clock tree without a separate voltage rail — one BOM line covers both domains.
Housed in a 6-VDFN package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm, this oscillator fits tight board stacks and leaves room for adjacent passives on a dense clock distribution net.