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Microchip Technology DSC1122CI5-074.0000T — Crystals & Oscillators

DSC1122CI5-074.0000T MEMS XO – 74 MHz LVPECL, ±10 ppm

MPNDSC1122CI5-074.0000T
Active

Microchip DSC1122CI5-074.0000T, MEMS-based XO (Standard), 74 MHz, LVPECL output, ±10 ppm stability, 2.25-3.6 V supply, -40°C to 85°C, 6-SMD, Tape & Reel

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

Specifications

DSC1122CI5-074.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency74 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
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

MEMS oscillator replaces quartz at 74 MHz LVPECL

The MEMS resonator is the active element, not a quartz crystal, which means no startup jitter from a crystal's motional inductance and no frequency drift from crystal aging. The wide input range also absorbs rail ripple — a 3.3 V rail that dips to 3.0 V under load still keeps the oscillator locked.

Industrial temperature grade and tight stability

The 6-SMD, no-lead package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a compact footprint that leaves room for passives on a dense mixed-signal board.

Frequently asked questions

What is the frequency stability of DSC1122CI5-074.0000T?

That means the 74 MHz output stays within 740 Hz of the nominal frequency across temperature, supply voltage, and aging — tight enough for most high-speed serial interfaces.

Can DSC1122CI5-074.0000T replace a standard quartz oscillator?

Yes, if the board expects an LVPECL input and the supply is between 2.25 V and 3.6 V. The MEMS resonator is a drop-in replacement for a quartz XO in the same 6-SMD footprint — no external load capacitors or bias resistors needed. The enable/disable function is a bonus that quartz oscillators often lack.

Is DSC1122CI5-074.0000T RoHS compliant?

Yes, the part is RoHS compliant. The MEMS construction contains no lead-based piezoelectric ceramic, and the package is lead-free per the DSC1122 series environmental compliance.