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Microchip Technology DSC1122BI2-125.0000T — Crystals & Oscillators

DSC1122BI2-125.0000T Microchip MEMS XO, 125 MHz LVPECL

MPNDSC1122BI2-125.0000T
Active

Microchip DSC1122 series, XO (Standard), 125 MHz, LVPECL output, ±25 ppm stability, -40°C to 85°C, 6-SMD, Tape & Reel

Microchip Technology DSC1122BI2-125.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1122BI2-125.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency125 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputLVPECL
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

MEMS oscillator at 125 MHz with LVPECL — what it replaces

The DSC1122BI2-125.0000T is a silicon MEMS-based XO, not a quartz crystal — it generates a 125 MHz reference clock with LVPECL differential output, ±25 ppm frequency stability, and an enable/disable function that pulls the output to high-Z when deasserted.

Industrial temperature grade and 6-SMD package

The 6-SMD no-lead package measures 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a standard footprint that matches many quartz XO footprints, easing a drop-in swap.

Frequently asked questions

Can DSC1122BI2-125.0000T replace a standard 125 MHz quartz oscillator?

Yes — the 6-SMD footprint is the same as many 5.0 mm x 3.2 mm quartz XOs, and the supply voltage range (2.25 V to 3.6 V) covers common 3.3 V and 2.5 V rails. The MEMS resonator is inherently more shock- and vibration-tolerant than quartz, which matters in industrial or mobile equipment. Verify the output type: this part drives LVPECL, not LVCMOS — the termination and DC bias differ.

How does the enable/disable function work on DSC1122BI2-125.0000T?

The enable/disable pin (pin 1 on the 6-SMD package) puts the output into a high-impedance state when deasserted, reducing supply current from 58 mA max to 22 mA max. This lets you gate the clock to a downstream device without an external clock buffer.