MAX31091AUA/V+066

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX31091AUA/V+066 is an automotive-grade clock generator housed in an 8-pin µMAX package. It provides a factory-trimmed center-spread-spectrum output frequency of 66.6MHz with a nominal accuracy of ±0.25% at +25°C and ±1.75% across the full temperature range. The device operates on a 3.0V to 3.6V supply, drawing a typical active current of 16mA. It supports pin-selectable dither magnitudes (0%, ±1%, ±2%, ±4%) and two selectable dither rates via SEL0, SEL1, and DR pins.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Automotive qualified (AEC-Q100) for -40°C to +125°C operation
• Factory trimmed 66.6MHz output with ±1.75% total accuracy
• Pin-selectable center-dither magnitude: 0%, ±1%, ±2%, or ±4%
• Two selectable dither rates determined by DR pin and output frequency

Clock Generators, PLLs, Frequency Synthesizers Applications

• Automotive Infotainment systems
• Navigation units
• Advanced Driver Assistance Systems (ADAS)
• Engine Control Unit (ECU) instrumentation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix '066' confirms the 66.6MHz factory trim frequency. Confirm the '/V' suffix indicates AEC-Q100 qualification and the '+' suffix denotes lead-free/RoHS compliance. Ensure the 'AUA' designation matches the required 8-pin µMAX package type for the target PCB footprint.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed 66.6MHz spread-spectrum clock is required for automotive applications. Verify that the load capacitance requirements (typically 15pF) align with the system design. Consider the 16mA supply current and ensure the power rail can support the peak demand without excessive voltage droop.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the MAX31091 EconOscillator family, which offers various factory-programmed frequencies ranging from 200kHz to 66.6MHz. The '066' suffix specifically identifies the 66.6MHz variant. Other variants in the series share identical pinouts and features but differ only in their programmed output frequency.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same package and qualification level include other MAX31091AUA/V+ variants with different frequency suffixes (e.g., MAX31091AUA/V+033 for 33.3MHz). Cross-family replacements require verification of electrical compatibility and pinout alignment.