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Microchip Technology DSC1222CI2-156M2935T — Crystals & Oscillators

DSC1222CI2-156M2935T MEMS XO 156.2935 MHz LVPECL - Microchip

MPNDSC1222CI2-156M2935T
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Microchip Technology DSC12X2 series MEMS XO (Standard), 156.2935 MHz, LVPECL output, ±25 ppm stability, 6-VDFN package, -40°C to 85°C.

Microchip Technology DSC1222CI2-156M2935T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1222CI2-156M2935T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC12X2
MountingSurface Mount
Voltage2.25V ~ 3.63V
Current - supply50mA (Typ)
Current - supply (Disable)23mA (Typ)
Frequency156.2935 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
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

156.2935 MHz LVPECL MEMS oscillator for high-speed clock trees

The DSC1222CI2-156M2935T is a MEMS-based XO (Standard) from Microchip's DSC12X2 series, delivering a 156.2935 MHz LVPECL output with ±25 ppm frequency stability. This frequency is a common reference for 10 Gigabit Ethernet, Fibre Channel, and high-speed serial transceivers where LVPECL's differential swing provides noise immunity over long board traces.

Supply voltage flexibility and temperature grade

Operating from a 2.25V to 3.63V supply, this oscillator runs directly off a 3.3V or 2.5V rail without an intermediate regulator.

Housed in a 6-VDFN package measuring 3.20mm x 2.50mm with a seated height of 0.90mm, the device occupies minimal PCB area.

Frequently asked questions

Is DSC1222CI2-156M2935T compatible with a 3.3V supply?

Yes. The supply voltage range is 2.25V to 3.63V, so a 3.3V rail is within specification. The LVPECL output swing scales with the supply voltage; verify the receiver's input common-mode range at 3.3V.