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Microchip Technology DSC1122CI5-047.9990 — Crystals & Oscillators

DSC1122CI5-047.9990 – Microchip MEMS LVPECL Oscillator

MPNDSC1122CI5-047.9990
Active

Microchip Technology DSC1122CI5-047.9990, XO (Standard), LVPECL output, 47.999 MHz, ±10 ppm stability, -40 to +85°C, 6-SMD no-lead, MEMS resonator, Enable/Disable function.

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

Specifications

DSC1122CI5-047.9990 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency47.999 MHz
Frequency stability±10ppm
Operating temperature-40°C~85°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputLVPECL
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

The DSC1122CI5-047.9990: The LVPECL output is a differential signal that drives 50-ohm terminated lines directly — the 58 mA max supply current at 3.6 V reflects the output stage bias, not the MEMS core.

The part operates from 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails without a separate regulator. Budget the full 58 mA when the clock is active and driving a terminated line.

Package and board layout for 6-SMD no-lead

The MEMS resonator is less sensitive to board-level mechanical stress than a quartz crystal, but the LVPECL output traces should be routed as a 50-ohm differential pair with controlled impedance to maintain signal integrity.

The base product number DSC1122 covers the family; confirm the exact frequency and stability grade before committing the line item.

Frequently asked questions

Does the DSC1122CI5-047.9990 have an enable/disable function?

Yes, the Enable/Disable function is listed as a feature. When the pin is asserted low (or high, depending on the logic level definition in the datasheet), the output enters a high-impedance state while the internal oscillator remains running. The supply current drops to 22 mA max in the disabled state.