MAX31091AUA/V+T172

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX31091AUA/V+T172 is an automotive-grade clock generator operating within a 3.0V to 3.6V supply range and -40°C to +125°C temperature range. Factory trimmed for a 1.7MHz output frequency with ±0.25% nominal accuracy, it features center-spread-spectrum capability selectable via pins. The device supports dither magnitudes of 0%, ±1%, ±2%, or ±4% and includes two selectable dither rates. It utilizes an 8-pin µMAX package and holds AEC-Q100 qualification.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Automotive qualified (AEC-Q100) with -40°C to +125°C operating range
• Factory trimmed for 1.7MHz output with ±0.25% initial accuracy
• Pin-selectable center-dither magnitude: 0%, ±1%, ±2%, or ±4%
• Spread-spectrum output reduces radiated emission peaks

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 'T' suffix indicates tape-and-reel packaging and the '172' suffix specifies the 1.7MHz factory-trimmed frequency. Confirm the '/V' designation aligns with required automotive qualification standards. Ensure the order matches the specific spread-spectrum configuration needs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed-frequency clock source with spread-spectrum capabilities is required for automotive environments. Verify that the 1.7MHz frequency meets system timing requirements. Check SEL0/SEL1 pin configurations to ensure the desired dither magnitude is supported by the hardware design.

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 'AUA/V' variant denotes the automotive-qualified version in an 8-pin µMAX package. Other suffixes indicate different output frequencies or packaging types such as tube versus tape-and-reel.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Other MAX31091 variants with different frequency suffixes (e.g., +033, +066) are pin-compatible but provide different output frequencies. Custom frequency options require direct contact with the manufacturer.