Quad-output MEMS oscillator replaces four XOs on the BOM
The DSC400-3133Q0080KI2 packs four independent clock outputs into a single 20-VFQFN package: two at 148.35 MHz, one at 27 MHz, and one at 25 MHz. That means one oscillator footprint and one supply rail doing the job of four discrete XOs — a direct BOM consolidation play for boards that need multiple reference clocks. Outputs are configurable as LVCMOS or LVDS, so the same part can drive a SerDes reference on one lane and a logic clock on another without a level translator.
This holds the timing margin for 1000BASE-T, PCIe Gen 2, or USB 3.0 PHY reference clocks even when the board ambient hits 85 °C in a sealed enclosure. The MEMS resonator avoids the aging and shock sensitivity of a quartz crystal — the stability spec is maintained over the device lifetime without a calibration cycle.
Supply voltage spans 2.25 V to 3.6 V, so the oscillator runs directly from a 2.5 V or 3.3 V rail without a dedicated LDO. The wide tolerance also absorbs ripple from a noisy bus without losing lock.
The 20-VFQFN with exposed pad measures 5.00 mm x 3.20 mm, 0.90 mm tall — a standard quad-flat-pack footprint that reflows with a typical JEDEC profile and does not require via-in-pad unless the thermal pad demands it.