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Microchip Technology DSC1121BI5-022.5792T — Crystals & Oscillators

DSC1121BI5-022.5792T MEMS XO 22.5792 MHz CMOS - Microchip

MPNDSC1121BI5-022.5792T
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Microchip Technology DSC1121 series XO (Standard), 22.5792 MHz CMOS output, 2.25V–3.6V supply, -40°C to 85°C, ±10 ppm stability, 6-VDFN package.

Microchip Technology DSC1121BI5-022.5792T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121BI5-022.5792T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency22.5792 MHz
Operating temperature-40°C~85°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN
Absolute pull range±10ppm

Product details

The DSC1121BI5-022.5792T is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a fixed 22.5792 MHz CMOS output. Supply voltage spans 2.25V to 3.6V, covering 2.5V and 3.3V logic rails without an extra regulator.

6-VDFN package and board layout

Housed in a 6-VDFN package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm. Surface-mount assembly; the 6-VDFN has a centre pad that should be connected to the ground plane for thermal relief and mechanical stability. Standard reflow profiles for lead-free solder apply.

Frequently asked questions

What is the exact frequency of the DSC1121BI5-022.5792T?

The oscillator outputs a fixed 22.5792 MHz CMOS signal. This frequency is commonly used in audio clocking (e.g., 44.1 kHz sample rate multiples) and some serial communication interfaces.

What supply voltage range does the DSC1121BI5-022.5792T accept?

It operates from 2.25V to 3.6V, covering 2.5V and 3.3V rails. No external regulator is needed if the board already runs one of those voltages.

Can the DSC1121BI5-022.5792T replace a standard quartz crystal oscillator?

Yes, it is a drop-in replacement for a 22.5792 MHz quartz XO in the same 6-VDFN footprint, provided the supply voltage and output type (CMOS) match. The MEMS resonator is more robust against vibration and shock than a quartz blank.