Skip to main content
Log in
Microchip Technology DSC400-0244Q0009KE1 — Crystals & Oscillators

DSC400-0244Q0009KE1 MEMS XO – 100 MHz, HCSL/LVPECL, ±50 ppm

MPNDSC400-0244Q0009KE1
Active

Microchip Technology DSC400 series, XO (Standard), MEMS resonator, dual 100 MHz outputs, HCSL/LVPECL, ±50 ppm stability, 2.25-3.6V supply, 20-VFQFN exposed pad

Microchip Technology DSC400-0244Q0009KE1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-0244Q0009KE1 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Supply voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 1100MHz
Frequency - output 2100MHz
Operating temperature-20°C~70°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputHCSL, LVPECL
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Dual 100 MHz outputs from a MEMS resonator

Rated ±50 ppm frequency stability over the -20°C to +70°C commercial temperature range — sufficient for most PCIe Gen 3/4 reference clocks and 100G Ethernet MACs without external VCXO trimming. Supply voltage spans 2.25V to 3.6V, covering 2.5V and 3.3V rails commonly found on FPGA and SoC clock trees.

Housed in a 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height), the same footprint as many quartz oscillators — the Enable/Disable function on pin 1 lets the board hold the oscillator in reset during power sequencing without an external load switch.

Frequently asked questions

Where can I buy DSC400-0244Q0009KE1 and check stock?

The DSC400-0244Q0009KE1 is an active Microchip part sourced through independent distribution. Submit an RFQ for current pricing and lot-specific availability — no stock-holding claim is made here.

What is the frequency stability of DSC400-0244Q0009KE1?

±50 ppm over the -20°C to +70°C operating range.

Does DSC400-0244Q0009KE1 require external pull-up resistors?

HCSL outputs are open-source and require a 50-ohm termination to ground per lane (standard PCIe clock termination). LVPECL outputs need a Thévenin-equivalent termination to VCC-2V. The datasheet provides the recommended termination network for each mode.

Can I use DSC400-0244Q0009KE1 as a replacement for an older quartz crystal oscillator?

Yes, if the board expects a 100 MHz XO in a 5.00 mm x 3.20 mm footprint with HCSL or LVPECL outputs. The MEMS resonator eliminates the crystal load capacitors and improves shock/vibration tolerance, but the supply voltage must be within 2.25V–3.6V.