Four output clocks in one MEMS XO — consolidates the timing tree
The DSC400-1122Q0036KI1T is a MEMS-based XO (standard) from Microchip's DSC400 series, delivering four independent LVCMOS or LVPECL clock outputs at 100 MHz, 156.25 MHz, 25 MHz, and 50 MHz from a single 20-VFQFN package. A single oscillator replaces four discrete XOs, saving board area and reducing the number of frequency references the layout engineer must route.
Industrial temperature range and wide supply — fits outdoor and mixed-rail designs
The 2.25V to 3.6V supply range lets it run directly from a 2.5V or 3.3V rail without an intermediate LDO, simplifying the power tree and reducing BOM count.
Microchip lists the DSC400-1122Q0036KI1T as Active.
20-VFQFN exposed pad — layout and thermal notes
The 5.00 mm x 3.20 mm, 20-lead VFQFN with exposed pad requires a thermal via array under the pad for adequate heat transfer to the PCB ground plane. The 0.90 mm height fits standard mezzanine card spacing.