DS1086LU-A12+

Overview

The DS1086LU-A12+ is a 3.3V programmable clock generator from the EconOscillator family, manufactured by Analog Devices Inc./Maxim Integrated. It produces spread-spectrum square-wave outputs ranging from 130kHz to 66.6MHz. The device reduces radiated emissions by dithering the frequency by selectable amounts of 0.5%, 1%, 2%, 4%, or 8% below the programmed value. It operates on a 2.7V to 3.6V supply and features nonvolatile EEPROM memory for standalone operation without external timing components. The component is housed in an 8-lead μSOP package and supports industrial temperature ranges.

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 storage for settings, enabling standalone operation
• 2-Wire serial interface for configuration and control

Applications

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

Procurement Notes

Verify the specific suffix A12 against the manufacturer's datasheet to confirm factory-programmed default settings. The + suffix indicates lead-free/RoHS compliance. Confirm availability status as distribution channels may list limited stock or end-of-life conditions for this specific variant.

Selection Notes

Select the DS1086LU-A12+ when a fixed, factory-programmed frequency is required without external programming hardware. Ensure the application voltage stays within 2.7V to 3.6V. Verify that the required dither percentage (0.5% to 8%) meets EMI reduction targets. Check if the 8-lead μSOP package fits the PCB layout constraints.

Part Context

This part belongs to the Maxim Integrated DS1086L series of 3.3V Spread-Spectrum EconOscillators. The 'LU' designation specifies the industrial temperature range (-40°C to +85°C) and the 8-lead μSOP package. The '+T' or '+' suffix denotes RoHS-compliant packaging. The base model DS1086L allows user programming, while the A12 variant implies a specific pre-configured setting.

Replacement Considerations

Direct replacements include other variants in the DS1086L family such as DS1086LU+ for generic programmable use. Cross-manufacturer silicon oscillators with spread-spectrum capabilities may serve as functional alternatives if pin compatibility and electrical specifications align.