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Microchip Technology DSC1122CI2-148.5000 — Crystals & Oscillators

DSC1122CI2-148.5000 MEMS XO – 148.5 MHz LVPECL, ±25 ppm

MPNDSC1122CI2-148.5000
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Microchip Technology DSC1122CI2-148.5000, XO (Standard) MEMS oscillator, 148.5 MHz LVPECL output, ±25 ppm stability, 6-SMD no-lead, -40°C to 85°C.

Microchip Technology DSC1122CI2-148.5000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1122CI2-148.5000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1122
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply58mA
Current - supply (Disable)22mA
Frequency148.5 MHz
Frequency stability±25ppm
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

148.5 MHz LVPECL MEMS oscillator for high-speed clock trees

LVPECL differential signalling at 148.5 MHz suits it for clocking high-speed ADCs, FPGAs, and SERDES interfaces where jitter budget and common-mode noise rejection matter.

Operates from a 2.25V to 3.6V supply rail, so it can run directly off a 2.5V or 3.3V rail without an intermediate LDO.

Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a compact footprint that fits tight channel spacing on a 10 GbE line card or FPGA mezzanine.

Frequently asked questions

What are the exact specifications of DSC1122CI2-148.5000?

It is a MEMS XO (Standard) with LVPECL output at 148.5 MHz, ±25 ppm stability, operating from 2.25V to 3.6V over -40°C to 85°C. Package is 6-SMD no-lead, 3.20 mm x 2.50 mm. Max supply current 58 mA; disable function reduces draw to 22 mA.

Can DSC1122CI2-148.5000 replace an older quartz oscillator in an existing design?

It can drop into a 6-pin SMD footprint designed for a 3.2 mm x 2.5 mm XO with LVPECL output and a 2.25V–3.6V supply. The MEMS resonator eliminates quartz start-up time and is more shock tolerant, but verify the Enable/Disable logic polarity matches the original circuit.

Is the DSC1122CI2-148.5000 compatible with 3.3V logic?

Yes. The supply range of 2.25V to 3.6V includes 3.3V, and the LVPECL output levels are compatible with standard 3.3V LVPECL receivers.