Automotive Temperature Range Spread-Spectrum EconOscillator

Automotive-Qualified, Feature-Rich, Spread-Spectrum Clock Generator to Reduce EMI

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The MAX31091 is a low-cost clock generator that is factory trimmed to output frequencies from 200kHz to 66.6MHz with a nominal accuracy of ±0.25%. The device can also produce a center-spread-spectrum output with pin-selectable dither magnitude and rate. Assembled in an 8-pin µMAX® package, the MAX31091 is designed to operate with a 3.0V to 3.6V power supply over the automotive temperature range (-40°C to +125°C).
MAX31091: Typical Operating Circuit MAX31091: Typical Operating Circuit Enlarge+

Key Features

  • Spread-Spectrum Clock Output from 200kHz to 66.6MHz
  • -40°C to +125°C Operating Temperature Range
  • ±1.75% Accuracy Across Temperature
  • Factory Trimmed
  • Center-Dithered Spread-Spectrum Output
  • Pin-Selectable Center-Dither Magnitude of 0%, ±1%, ±2%, or ±4%
  • Pin-Selectable Dither Rate
  • 3.0V to 3.6V Supply Operation
  • Lead(Pb)-Free, 8-Pin µMAX Package
  • AEC-Q100 Qualified


  • Advanced Driver Assistance System (ADAS)
  • Automotive
  • Automotive Infotainment
  • Engine Control Unit (ECU) Instrumentation
  • Navigation

See parametric specs for Silicon Oscillators (17)

Part NumberfOUT
User Prog. fOUTSpread SpectrumVCC
Reset OutOper. Temp.
maxminmaxSee Notes
MAX31091 66.6200±1.75 (-40°C to 125°C)NoYes3.0 to 3.6No-40 to +125
$1.83 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX31091EVKIT: Evaluation Kit for the MAX31091

Technical Documents

App Note 3503 Clock Generation with Spread Spectrum
Product Reliability Reports: MAX31091.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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