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Microchip Technology DSC1222DI2-121M1090 — Crystals & Oscillators

DSC1222DI2-121M1090 MEMS XO – 121.109 MHz LVPECL, Active

MPNDSC1222DI2-121M1090
Active

Microchip DSC1222DI2-121M1090, MEMS-based XO (Standard), 121.109 MHz, LVPECL output, ±25 ppm stability, -40°C to 85°C, 6-VDFN package, Enable/Disable function.

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

Specifications

DSC1222DI2-121M1090 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1222
MountingSurface Mount
Voltage2.5V ~ 3.3V
Current - supply50mA (Typ)
Current - supply (Disable)23mA (Typ)
Frequency121.109 MHz
Frequency stability±25ppm
Operating temperature-40°C ~ 85°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.035\" (0.90mm)
OutputLVPECL
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

121.109 MHz LVPECL MEMS oscillator – active production

Supply voltage flexibility and output logic

Operates from a 2.5V to 3.3V supply rail — the same device covers both 2.5V and 3.3V clock domains without a separate voltage variant. The LVPECL output requires proper termination (typically 50 Ω to VCC - 2V) to maintain signal integrity at 121.109 MHz. Max supply current is 50 mA typ; disabled current drops to 23 mA typ.

Housed in a 6-VDFN package measuring 2.50mm x 2.00mm with a seated height of 0.90mm. Surface-mount mounting is standard for automated assembly. The package is supplied in Tube; tape-and-reel availability should be confirmed at RFQ for volume pick-and-place.

Frequently asked questions

What is the frequency stability of DSC1222DI2-121M1090?

This is tight enough for most Ethernet and SerDes reference clocks without external temperature compensation.