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Microchip Technology DSC1222CI3-164M4257 — Crystals & Oscillators

DSC1222CI3-164M4257 – Microchip MEMS LVPECL Oscillator

MPNDSC1222CI3-164M4257
Active

Microchip Technology DSC1222 series XO (Standard), 164.4257 MHz, LVPECL output, MEMS resonator, ±20 ppm stability, -40°C to 85°C, 6-VDFN surface-mount package.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1222CI3-164M4257 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1222
MountingSurface Mount
Supply voltage2.25V ~ 3.63V
Current - supply50mA (Typ)
Current - supply (Disable)23mA (Typ)
Frequency164.4257 MHz
Frequency stability±20ppm
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-VDFN

Product details

164.4257 MHz LVPECL clock – MEMS reliability

The DSC1222CI3-164M4257: Unlike quartz-based oscillators, the MEMS resonator offers superior shock and vibration tolerance — relevant for base stations, industrial controllers, and networking equipment where board-level mechanical stress can pull a quartz crystal off frequency.

Supply range and disable function

The supply voltage accepts 2.25V to 3.63V, covering both 2.5V and 3.3V logic rails without a separate regulator.

Package and PCB footprint

Housed in a 6-VDFN package measuring 3.20mm x 2.50mm with a seated height of 0.90mm max. The 6-pin VDFN footprint is common among MEMS oscillators — the same land pattern serves most Microchip DSC1xxx/DSC2xxx parts, so a single PCB layout can support multiple frequencies.

Frequently asked questions

How does the Enable/Disable function work on this oscillator?

The Enable/Disable pin gates the LVPECL output. When pulled low (or left open depending on the logic family variant), the output enters a high-impedance state and the supply current drops to 23 mA typ, while the MEMS resonator and PLL remain powered for fast restart.