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Microchip Technology DSC1123AI2-148.5000T — Crystals & Oscillators

DSC1123AI2-148.5000T MEMS XO, 148.5 MHz LVDS, AEC-Q100

MPNDSC1123AI2-148.5000T
Active

Microchip DSC1123 series MEMS XO (standard), 148.5 MHz LVDS output, ±25 ppm stability, 2.25V–3.63V supply, -40°C to 85°C, AEC-Q100 qualified, 6-SMD package.

$2.8300Ref. price · indicative, final on quote
Microchip Technology DSC1123AI2-148.5000T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1123AI2-148.5000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1123
MountingSurface Mount
Voltage2.25V ~ 3.63V
Current - supply32mA
Current - supply (Disable)22mA
Frequency148.5 MHz
Frequency stability±25ppm
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
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

148.5 MHz LVDS clock for automotive and industrial timing

The DSC1123AI2-148.5000T is a MEMS-based XO (standard) delivering a 148.5 MHz LVDS output — the exact frequency used in 1080p video clocking and automotive SerDes links. Supply voltage spans 2.25V to 3.63V, covering 2.5V and 3.3V rails without a separate regulator. The ±25 ppm frequency stability holds over temperature and supply variation, keeping the video pixel clock within spec.

AEC-Q100 qualification and enable/disable gating

The enable/disable function pulls the output to high-Z and drops supply current to 22 mA max, letting the ECU gate the clock during sleep modes.

Package and board layout notes

Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00mm x 5.00mm with a seated height of 0.90mm. The exposed pad requires a thermal via pattern under the package for heat transfer — the datasheet layout recommendation keeps the junction temperature within limits during continuous 32 mA draw.

Frequently asked questions

Can the DSC1123AI2-148.5000T replace a standard quartz oscillator on the same PCB footprint?

The MEMS resonator is pin-compatible with quartz XOs of the same size and pinout. However, the LVDS output is a differential signal; the receiver must be LVDS-compatible. If the original design used a single-ended CMOS oscillator, a level translator or a different DSC1123 variant (CMOS output) would be needed.

Does the DSC1123AI2-148.5000T have an enable/disable function?

Yes, the part includes an enable/disable function. When disabled, the supply current drops to 22 mA max, allowing the system to gate the clock for power savings.

Is the DSC1123AI2-148.5000T AEC-Q100 qualified?

Yes, the oscillator carries an AEC-Q100 rating, meaning it has passed automotive-grade reliability testing including temperature cycling, ESD, and latch-up.