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Microchip Technology DSC400-0202Q0109KE1T — Crystals & Oscillators

DSC400-0202Q0109KE1T MEMS XO – 153.6 MHz & 176.875 MHz

MPNDSC400-0202Q0109KE1T
Active

Microchip DSC400 series MEMS XO, dual-output LVPECL, 153.6 MHz and 176.875 MHz, ±50 ppm stability, -20°C to 70°C, 20-VFQFN exposed-pad package, enable/disable function.

Microchip Technology DSC400-0202Q0109KE1T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-0202Q0109KE1T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Supply voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 1153.6MHz
Frequency - output 2176.875MHz
Operating temperature-20°C~70°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputLVPECL
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Dual-frequency LVPECL clock in a MEMS XO

The DSC400-0202Q0109KE1T is a MEMS-based XO that outputs two independent LVPECL frequencies from a single 20-VFQFN package: 153.6 MHz on output 1 and 176.875 MHz on output 2. These two frequencies are common in 10G/25G Ethernet SerDes reference clocks and FPGA transceiver banks — one oscillator replaces two discrete cans, saving board area and reducing the BOM line count.

Supply range and enable/disable control

Operates from 2.25 V to 3.6 V — covers 2.5 V and 3.3 V rails without an external regulator.

Housed in a 20-VFQFN with an exposed pad (5.00 mm x 3.20 mm, 0.90 mm height).

The DSC400 series is Microchip's current-generation MEMS oscillator family; no successor has been announced.

Frequently asked questions

What are the exact output frequencies of DSC400-0202Q0109KE1T?

Output 1 is 153.6 MHz; output 2 is 176.875 MHz. Both are LVPECL differential outputs.

Is DSC400-0202Q0109KE1T RoHS compliant?

The part is listed as RoHS compliant per Microchip's standard DSC400 series material declaration. The 20-VFQFN package is lead-free and compatible with lead-free reflow profiles.

Can DSC400-0202Q0109KE1T be used with a 3.3 V supply?

Yes — the supply voltage range is 2.25 V to 3.6 V, so 3.3 V is within spec. The LVPECL output swing scales with the supply voltage; at 3.3 V the differential swing is typically 800 mV p-p.