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Microchip Technology DSC1123AI5-322.2656 — Crystals & Oscillators

DSC1123AI5-322.2656 XO 322.2656 MHz LVDS MEMS Oscillator –

MPNDSC1123AI5-322.2656
Active

Microchip DSC1123 series XO (Standard), LVDS output, 322.2656 MHz, ±10 ppm stability, 2.25V–3.63V supply, -40°C to 85°C, 6-SMD no-lead exposed pad package

$5.5050Ref. price · indicative, final on quote
Microchip Technology DSC1123AI5-322.2656 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1123AI5-322.2656 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1123
MountingSurface Mount
Supply voltage2.25V ~ 3.63V
Current - supply32mA
Current - supply (Disable)22mA
Frequency322.2656 MHz
Frequency stability±10ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputLVDS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

322.2656 MHz LVDS clock for SERDES and FPGA reference

The DSC1123AI5-322.2656 is a MEMS-based XO (Standard) oscillator delivering a 322.2656 MHz LVDS output — a frequency commonly used as a reference clock for 10 Gigabit Ethernet PHYs, FPGA transceivers, and high-speed SERDES. The LVDS differential pair keeps jitter low over board traces longer than a few inches, which a single-ended CMOS clock at this frequency would struggle to maintain without signal degradation.

The supply range spans 2.25V to 3.63V — it runs from a 2.5V or 3.3V rail without a separate LDO.

Frequently asked questions

How can I order DSC1123AI5-322.2656 or check availability?

This part is Active and available through our independent distribution channel. Submit an RFQ with your target quantity; we confirm current pricing and lead time at quote. No stock-holding claim is made — availability is confirmed per order.

Is DSC1123AI5-322.2656 compatible with a 3.3V supply?

Yes. The supply voltage range is 2.25V to 3.63V, so a 3.3V rail is within spec. The LVDS output common-mode voltage and swing are referenced to the supply, so the receiver must accept the levels generated at 3.3V.

Can a MEMS oscillator like DSC1123AI5-322.2656 replace a quartz crystal oscillator?

Functionally yes — it provides a fixed-frequency clock output without external load capacitors or a crystal. The MEMS construction offers better shock and vibration tolerance than quartz, and the ±10 ppm stability is comparable to a standard quartz XO. The trade-off is that the frequency is factory-programmed and cannot be pulled (no VCXO function).