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Microchip Technology DSC1122AI1-133.3300T — Crystals & Oscillators

DSC1122AI1-133.3300T Microchip MEMS XO, LVPECL, 133.33 MHz

MPNDSC1122AI1-133.3300T
Active

Microchip DSC1122AI1-133.3300T, MEMS-based XO (Standard), LVPECL output, 133.33 MHz, ±50 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-SMD, Tape & Reel.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1122AI1-133.3300T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency133.33 MHz
Frequency stability±50ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputLVPECL
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

133.33 MHz LVPECL MEMS oscillator — active production

Its supply voltage spans 2.25V to 3.6V, allowing it to run from a common 2.5V or 3.3V rail without an extra regulator. The Enable/Disable function lets the system gate the clock output, pulling the supply current from 58 mA (max) down to 22 mA (max) when disabled.

Industrial temperature grade and MEMS reliability

The MEMS base resonator is inherently more shock- and vibration-tolerant than a quartz crystal — a practical advantage in motor-drive or automotive auxiliary applications.

6-SMD package and board layout

Housed in a 7.00 mm x 5.00 mm 6-SMD package with an exposed pad (No Lead), the part requires a thermal-land pattern on the PCB for proper heat dissipation and mechanical stability. The seated height of 0.90 mm keeps it low-profile for mezzanine or card-edge applications.

Frequently asked questions

What is the output logic of the DSC1122AI1-133.3300T?

The output is LVPECL (Low-Voltage Positive Emitter-Coupled Logic), a differential standard that requires 50-ohm termination to VCC – 2V. It is not compatible with LVCMOS or LVTTL inputs without a level translator.

Can the DSC1122AI1-133.3300T replace the DSC1121AI1-133.3300T?

The DSC1121 series typically outputs LVCMOS/LVTTL, while the DSC1122 outputs LVPECL. They are not drop-in replacements — the output logic family differs, and the termination network must change. Check the respective datasheets for pin compatibility.

Is the DSC1122AI1-133.3300T RoHS compliant?

RoHS compliance is standard for Microchip's DSC1122 series. The part is lead-free and suitable for RoHS-directed assemblies.