One MEMS can replaces four quartz cans
The DSC400-3133Q0100KE1 packs four independent output frequencies into a single 5.00mm x 3.20mm 20-VFQFN package — 148.35MHz/148.5MHz on output 1, 156.25MHz on output 2, 25MHz on output 3, and 197.8MHz/198MHz on output 4 — so one part does the timing job that used to need four discrete XOs. The MEMS base resonator shrugs off the shock and vibration that can pull a quartz crystal off frequency — useful if the board lives in a fan-cooled chassis, a portable instrument that gets dropped, or a panel that sees conveyor vibration.
The 2.25V~3.6V supply range lets this oscillator run directly from a 2.5V or 3.3V rail without a dedicated LDO — the wide tolerance also covers a 3.3V rail that sags under load, so you don't get clock glitches on a brownout. Outputs are configurable as LVCMOS or LVDS — LVCMOS for general-purpose clock distribution to FPGAs or ASICs, LVDS for longer traces or differential clock trees where common-mode noise rejection matters.
Package, temperature, and board-fit reality
At 0.035" (0.90mm) height, this oscillator fits under a mezzanine card or inside a 1U rack-mount chassis where component height is budgeted to the millimetre.