MAX31091AUA/V+192

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX31091AUA/V+192 is an automotive-grade clock generator housed in an 8-pin µMAX package. It operates on a 3.0V to 3.6V supply and functions within the -40°C to +125°C temperature range. Factory trimmed for a 1.9MHz output frequency, it features center-spread-spectrum capability with pin-selectable dither magnitudes of 0%, ±1%, ±2%, or ±4%. The device achieves ±0.25% nominal accuracy at 25°C and ±1.75% across temperature and voltage variations. Supply current is typically 16mA.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Automotive qualified (AEC-Q100) with -40°C to +125°C operating range
• Factory programmed 1.9MHz output frequency
• Pin-selectable center-dither magnitude: 0%, ±1%, ±2%, ±4%
• Spread-spectrum output reduces radiated emissions

Clock Generators, PLLs, Frequency Synthesizers Applications

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm factory-programmed frequency and packaging type. Confirm AEC-Q100 qualification status and RoHS compliance requirements prior to procurement. Ensure the component meets the required automotive grade specifications for the target application environment.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed-frequency clock source between 200kHz and 66.6MHz is required for automotive systems. Verify that the 1.9MHz factory-trimmed frequency aligns with system timing needs. Consider the pin-selectable spread-spectrum options if EMI reduction is necessary. Ensure the 3.0V to 3.6V supply voltage matches the design power rails.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The MAX31091 belongs to Maxim Integrated's EconOscillator family of low-cost clock generators. This specific part number represents the automotive-qualified variant designed for high-reliability applications. The '192' suffix indicates the factory-set output frequency of 1.9MHz.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consult the manufacturer's official documentation for verified pin-compatible alternatives. Cross-reference electrical characteristics, specifically supply voltage, temperature range, and output frequency tolerance, to ensure functional equivalence.