DS1086LU-527+

Overview

The DS1086LU-527+ is a 3.3V programmable clock generator producing spread-spectrum square-wave outputs from 130kHz to 66.6MHz. It reduces radiated emissions by dithering frequency by 0.5%, 1%, 2%, 4%, or 8%. The device features a 2-wire serial interface for programming and stores settings in nonvolatile EEPROM, enabling standalone operation. Operating on a 2.7V to 3.6V supply, it includes power-down and glitchless output-enable controls. The unit operates within an industrial temperature range of -40°C to +85°C and is housed in an 8-pin μSOP package.

Feature Summary

• Programmable output frequencies from 130kHz to 66.6MHz with 5kHz master frequency step size
• Selectable spread-spectrum dither levels: 0.5%, 1%, 2%, 4%, or 8%
• Nonvolatile EEPROM memory retains configuration settings without external backup
• Glitchless output-enable control and dedicated power-down mode for low-power applications

Applications

• Printers
• Copiers
• PCs
• Computer Peripherals
• Cable Modems

Procurement Notes

Verify the specific suffix '527' against official manufacturer documentation, as standard datasheets list 'DS1086LU+' and 'DS1086LU'. Confirm if this suffix denotes a custom factory-programmed setting or a specific packaging variant. Ensure the component meets RoHS compliance requirements indicated by the '+' designation in standard part numbers. Contact the manufacturer directly for confirmation of availability and exact specifications for this unique identifier.

Selection Notes

Select this component when EMI reduction via spread-spectrum clocking is required for digital systems. Ensure the target frequency falls within the 130kHz to 66.6MHz range. Verify that the system voltage aligns with the 2.7V to 3.6V operating range. Consider the 8-pin μSOP package constraints for PCB layout. Use the 2-wire interface if dynamic frequency adjustment is needed during operation.

Part Context

This device belongs to Maxim Integrated's EconOscillator family, designed as self-contained clock generators eliminating the need for external timing components like crystals or resonators. The DS1086L series specifically targets 3.3V applications requiring precise frequency generation with emission suppression capabilities. It serves as a direct replacement for traditional oscillator modules in space-constrained designs.

Replacement Considerations

Standard equivalents include DS1086LU and DS1086LU+. Verify pin compatibility and electrical characteristics before substitution. Custom suffixes may require factory-specific programming data not available in public documents.