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Microchip Technology DSC400-3333Q0078KI1 — Crystals & Oscillators

DSC400-3333Q0078KI1 MEMS Oscillator – 4x 125MHz LVDS, Active

MPNDSC400-3333Q0078KI1
Active

Microchip DSC400 series, XO (Standard) MEMS oscillator, four LVDS outputs at 125 MHz each, ±50ppm stability, -40°C to 85°C, 20-VFQFN exposed pad package, tube.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-3333Q0078KI1 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Supply voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 1125MHz
Frequency - output 2125MHz
Frequency - output 3125MHz
Frequency - output 4125MHz
Operating temperature-40°C~85°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 resonator

Each output runs at 125 MHz with ±50 ppm frequency stability, keeping the jitter budget tight for 10 GbE, PCIe Gen 3, or SATA link clocks without a separate PLL cleaning stage. Supply voltage spans 2.25 V to 3.6 V — a single 2.5 V or 3.3 V rail powers all four lanes, simplifying the power distribution on a mixed-voltage board.

Housed in a 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height), the package demands a thermal via array under the pad for heat sinking — the MEMS die dissipates little heat, but the pad still needs a solid ground-plane connection for EMI containment.

Frequently asked questions

What is the output type and frequency of the DSC400-3333Q0078KI1?

LVDS output, four channels each at 125 MHz. Frequency stability is ±50 ppm over the full -40°C to 85°C range.