MAX31D80T-003+T

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX31D80T-003+T is a spread-spectrum clock generator from Analog Devices/Maxim Integrated, housed in a 10-pin TDFN package. It utilizes an internal phase-locked loop to generate a 2MHz to 134MHz output clock from an input crystal or clock signal. Factory-programmed for a 12MHz input and 12MHz output with a 25kHz dither rate, it provides a down-dithered frequency-modulated clock. The device operates on a 3.3V supply within an automotive temperature range of -40°C to +125°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Factory-programmable 12MHz input/output frequencies with 25kHz dither rate
• Down-dithered spread-spectrum modulation capability up to -3%
• Internal PLL generates clocks from 2MHz to 134MHz using low-cost crystals
• Operates over full automotive temperature range (-40°C to +125°C)

Clock Generators, PLLs, Frequency Synthesizers Applications

• Graphics Cards
• Set-Top Boxes
• Automotive Infotainment
• Printers

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed parameters against the Selector Guide table before procurement. Confirm that the 'T' suffix indicates tape-and-reel packaging and the '+' suffix denotes lead-free/RoHS compliance. Ensure the application circuit matches the recommended decoupling capacitor values for optimal performance.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when a fixed 12MHz input-to-output conversion with down-spectrum modulation is required. Compare against the MAX31C80 if center-dithering is preferred instead of down-dithering. Verify that the 10-pin TDFN footprint fits the design constraints and that the 3.3V supply voltage aligns with system power rails.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the MAX31C80/MAX31D80 family of spread-spectrum clock generators. The MAX31D80 variant specifically supports down-dithered modulation, whereas the MAX31C80 supports center-dithered modulation. Both share identical pinouts and operational characteristics except for the dither mode.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The MAX31C80T-xxx+T serves as a functional alternative if center-dithered spread spectrum is acceptable instead of down-dithered. Other MAX31D80 variants with different factory-programmed frequencies can replace this unit if the input/output requirements differ.