What this MEMS XO delivers on your clock tree
The DSC400-0401Q0103KI2T is a MEMS-based XO (Standard) from Microchip's DSC400 series, delivering two fixed output frequencies: 12.288 MHz and 100 MHz, selectable as HCSL or LVCMOS logic levels. The 20-VFQFN exposed-pad package (5.00 mm x 3.20 mm, 0.90 mm height) requires a thermal via pattern under the pad for heat sinking and a reflow profile compatible with lead-free solder — the exposed paddle also provides a low-impedance ground return for the high-speed outputs.
It remains a current design-in choice for new builds.
Operates from a 2.25 V to 3.6 V supply, covering common 2.5 V and 3.3 V rails without an external regulator.