MAX31091AUA/V+T066

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX31091AUA/V+T066 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 ±0.25% nominal accuracy at +25°C. The device operates on a 3.0V to 3.6V supply and supports the -40°C to +125°C temperature range. Key electrical parameters include a typical active supply current of 16mA, a power-up time of 0.1ms, and a load capacitance support up to 50pF. It features pin-selectable dither magnitudes and rates to reduce radiated emissions.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Automotive qualified (AEC-Q100) for -40°C to +125°C operation
• Factory trimmed 66.6MHz output with ±0.25% initial accuracy
• Pin-selectable center-dither magnitude (0%, ±1%, ±2%, ±4%)
• Spread-spectrum capability reduces EMI peaks

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 'T' suffix indicates tape-and-reel packaging rather than tube. Confirm the '066' suffix corresponds to the specific 66.6MHz frequency option. Ensure the '/V' designation matches the required automotive qualification level. Check for RoHS compliance status indicated by the '+' suffix.

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 16mA supply current fits the system power budget. Ensure the 8-pin µMAX package dimensions fit the PCB layout constraints. Confirm compatibility with the required dither settings via SEL0/SEL1 pins.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the MAX31091 EconOscillator family, which offers various factory-programmed frequencies from 200kHz to 66.6MHz. The 'AUA/V' prefix denotes the automotive temperature range and µMAX package, while '+T066' specifies the tape-and-reel packaging and the 66.6MHz output frequency.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes within the same family include MAX31091AUA/V+T033 (33.3MHz) or MAX31091AUA/V+T027 (27MHz). Non-family replacements require verifying pinout compatibility, voltage range, and package size.