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Microchip Technology DSC1122BI5-400.0000 — Crystals & Oscillators

DSC1122BI5-400.0000 – 400 MHz LVPECL MEMS Oscillator

MPNDSC1122BI5-400.0000
Active

Microchip DSC1122 series, XO (Standard), 400 MHz LVPECL output, MEMS resonator, ±10 ppm stability, -40°C to 85°C, 6-SMD no-lead package, active production.

Microchip Technology DSC1122BI5-400.0000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1122BI5-400.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency400 MHz
Frequency stability±10ppm
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
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

400 MHz LVPECL clock source with MEMS reliability

Supply voltage range is 2.25V to 3.6V, so it can run from a 2.5V or 3.3V rail without an extra regulator — useful when the FPGA bank voltage is 2.5V and the rest of the board is 3.3V.

Package and footprint for high-speed layout

Housed in a 6-SMD no-lead package measuring 5.00mm x 3.20mm with a seated height of 0.90mm, this is a standard 5x3.2 mm oscillator footprint that matches many quartz oscillator pads — a direct drop-in replacement for existing 5x3.2 mm LVPECL oscillators. The no-lead package keeps the signal path inductance low, which matters for a 400 MHz LVPECL signal where edge rates are fast and the output swing is differential.

Frequently asked questions

What is the frequency and output type of DSC1122BI5-400.0000?

The frequency is 400 MHz and the output type is LVPECL (Low-Voltage Positive Emitter-Coupled Logic), a differential signal standard commonly used for high-speed clock distribution in networking and FPGA designs.

Can this MEMS oscillator replace a quartz crystal oscillator in the same footprint?

Yes, the 5.00mm x 3.20mm 6-SMD no-lead package matches the standard 5x3.2 mm oscillator footprint used by many quartz-based LVPECL oscillators. The MEMS resonator offers better shock tolerance and faster startup, but the electrical interface (supply voltage, output type, enable function) must match the board design.