MEMS oscillator for 100 MHz clock trees
The DSC1224BI2-100M0000T is a 100 MHz MEMS-based XO from Microchip's DSC1224 series, delivering an HCSL output — the standard for PCIe Gen1/2/3 reference clocks and high-speed SerDes interfaces.
Supply voltage and output compatibility
The HCSL output is current-mode, requiring a 50-ohm termination to ground at the receiver; typical peak-to-peak swing is 700-900 mV, directly compatible with PCIe clock buffers and Intel/AMD chipset reference inputs.
Housed in a 6-VDFN package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a compact footprint that matches standard 5x3.2 mm oscillator pads, allowing a drop-in replacement for quartz XOs of the same size.
No known successor; the DSC1224 series remains the current offering for this frequency/output combination.