DS1091LUA-033/V+T

Clock Generators, PLLs, Frequency Synthesizers Overview

The DS1091LUA-033/V+T is a factory-trimmed clock generator producing a 33.3 MHz center-dithered spread-spectrum output. It operates on a 3.0V to 3.6V supply with a typical current of 16 mA. The device provides ±1.75% accuracy across the -40°C to +125°C automotive temperature range and features pin-selectable dither magnitudes (0%, ±1%, ±2%, ±4%) and rates. Packaged in an 8-pin µMAX, it includes decoupling capacitors for power-supply stability.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Factory-programmed 33.3 MHz center-dithered spread-spectrum output
• Automotive qualified (-40°C to +125°C) with ±1.75% frequency accuracy
• Pin-selectable dither magnitude (0%, ±1%, ±2%, ±4%) via SEL0/SEL1
• Pin-selectable dither rate via DR pin

Clock Generators, PLLs, Frequency Synthesizers Applications

• Automotive infotainment systems
• POS terminals
• LCD displays
• Printers
• Industrial control

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the 'V' suffix confirms automotive qualification and the 'T' suffix indicates tape-and-reel packaging. Confirm the '033' designation matches the required 33.3 MHz frequency. Check RoHS compliance status indicated by the '+' suffix against project requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part for applications requiring a fixed 33.3 MHz clock with spread-spectrum capabilities to reduce EMI. Ensure the load capacitance does not exceed 50 pF. Verify that the 8-pin µMAX package footprint aligns with the PCB layout constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the DS1091L EconOscillator family, designed for low-cost clock generation. The 'U' in the model number specifies the µMAX package type, while 'A' denotes center-dithering functionality. It serves as a direct replacement for standard crystal oscillators in noise-sensitive designs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Compatible substitutes within the same family include DS1091LUA-033+ (tube packaging) or DS1091LUB-033+ (down-dither variant). Ensure the substitute matches the specific dithering profile and packaging format required by the assembly process.