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Microchip Technology DSC400-3333Q0078KE2 — Crystals & Oscillators

DSC400-3333Q0078KE2 MEMS XO, 4×125 MHz LVDS, Active

MPNDSC400-3333Q0078KE2
Active

Microchip DSC400-3333Q0078KE2, XO (Standard), MEMS resonator, 4 outputs at 125 MHz LVDS, ±25 ppm stability, -20 to 70°C, 20-VFQFN exposed pad, tube.

Microchip Technology DSC400-3333Q0078KE2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-3333Q0078KE2 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Supply voltage2.25V ~ 3.6V
Frequency stability±25ppm
Frequency - output 1125MHz
Frequency - output 2125MHz
Frequency - output 3125MHz
Frequency - output 4125MHz
Operating temperature-20°C~70°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputLVDS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Four 125 MHz LVDS clocks from a MEMS die

The DSC400-3333Q0078KE2 is a MEMS-based XO that delivers four independent 125 MHz LVDS outputs from a single 5.00 mm × 3.20 mm, 20-VFQFN package — a clean replacement for four discrete quartz oscillators on a high-speed clock tree.

Supply voltage and output logic

Runs from a 2.25 V to 3.6 V supply rail — the same pin powers the MEMS core and the LVDS output buffer, so a single 3.3 V or 2.5 V plane suffices.

At 0.90 mm seated height it fits under a mezzanine card or in a tight enclosure stack.

Frequently asked questions

Where can I buy the DSC400-3333Q0078KE2 and what is the lead time?

The DSC400-3333Q0078KE2 is an Active Microchip product. We source it through independent distribution and quote to order against your BOM quantity. Availability and current pricing are confirmed at RFQ — no stock-holding claim is made here.

What is the output type and frequency stability of the DSC400-3333Q0078KE2?

Output is LVDS. Frequency stability is ±25 ppm across the -20 to 70°C operating range.

Is the DSC400-3333Q0078KE2 compatible with a 3.3 V supply?

Yes. The supply voltage range is 2.25 V to 3.6 V, so a 3.3 V rail is within spec. The LVDS output common-mode voltage tracks the supply, so the receiver must accept the corresponding input range.

Can the DSC400-3333Q0078KE2 replace a quartz oscillator?

Functionally yes — it provides four 125 MHz LVDS clocks from one package instead of four quartz cans. The MEMS resonator is more shock and vibration tolerant than a quartz crystal, but the 20-VFQFN footprint is different from a standard 7×5 mm oscillator, so the PCB layout must change.