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Microchip Technology DSC1103CI2-122.8800T — Crystals & Oscillators

DSC1103CI2-122.8800T MEMS XO, LVDS, 122.88 MHz, Active

MPNDSC1103CI2-122.8800T
Active

Microchip DSC1103 series XO (Standard), MEMS-based, 122.88 MHz LVDS output in 6-SMD No Lead package, 2.25V–3.63V supply, -40°C to 85°C, ±25 ppm stability

Microchip Technology DSC1103CI2-122.8800T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1103CI2-122.8800T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1103
MountingSurface Mount
Supply voltage2.25V ~ 3.63V
Current - supply32mA
Current - supply (Disable)95µA
Frequency122.88 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)
OutputLVDS
PackageTape & Reel (TR)
FunctionStandby (Power Down)
Base resonatorMEMS
Case6-SMD, No Lead

Product details

MEMS clock at 122.88 MHz with LVDS output

Housed in a 6-SMD No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — compatible with standard XO footprints for 122.88 MHz LVDS oscillators. The compact land pattern suits dense PCB layouts in optical transceivers or compact radio heads.

Because it is a MEMS oscillator, it is not a direct pin-for-pin replacement for a quartz XO unless the output type (LVDS) and supply voltage range match the existing footprint. Confirm the 6-SMD pad layout and the 122.88 MHz frequency before committing the BOM line.

Frequently asked questions

Is DSC1103CI2-122.8800T a MEMS oscillator?

Yes — the base resonator is MEMS, not quartz. This gives it better shock and vibration immunity and a wider supply voltage range (2.25 V to 3.63 V) while maintaining ±25 ppm stability over -40°C to 85°C.

What is the output type of DSC1103CI2-122.8800T?

LVDS (Low-Voltage Differential Signaling). This is a differential output, so it requires a 100-ohm termination resistor across the pair at the receiver — no pull-up or pull-down resistors. The LVDS swing is typically 350 mV, compatible with most FPGA clock inputs and SERDES reference pins.

Is DSC1103CI2-122.8800T compatible with 3.3 V?

Yes — the supply voltage range is 2.25 V to 3.63 V, so both 3.3 V and 2.5 V rails are within spec. No external regulator is needed when running from a 3.3 V supply.

Can I replace a standard 122.88 MHz quartz oscillator with DSC1103CI2-122.8800T?

Only if the original oscillator is also LVDS output and the package footprint matches the 6-SMD No Lead 3.20 mm x 2.50 mm layout. The MEMS part has a wider supply range and better vibration tolerance, but the output type and pinout must be verified against the existing board.