DS1086LU-222+

Overview

The DS1086LU-222+ is a 3.3V programmable clock generator from the EconOscillator family, housed in an 8-pin µSOP package. It generates spread-spectrum square-wave outputs ranging from 130kHz to 66.6MHz with selectable dither magnitudes of 0.5%, 1%, 2%, 4%, or 8%. The device operates on a 2.7V to 3.6V supply and includes a power-down mode and glitchless output-enable control. All settings are stored in nonvolatile EEPROM memory for standalone operation.

Feature Summary

• Programmable frequency range from 130kHz to 66.6MHz with 5kHz master frequency step size
• Selectable spread-spectrum dithering (0.5% to 8%) to reduce radiated emissions
• Nonvolatile EEPROM storage for factory-programmed or user-defined settings
• 2-Wire serial interface for register configuration and address setting

Applications

• Printers
• Copiers
• PCs
• Computer Peripherals
• Cell Phones

Procurement Notes

Verify the specific suffix '222' against official documentation, as standard listings typically use numeric codes like '834' or '+'. Confirm availability status, as many variants in this series are marked as obsolete or have limited stock. Ensure the component meets RoHS compliance requirements if indicated by the '+' designation.

Selection Notes

Select this component when EMI reduction via spread-spectrum clocking is required without external timing components. Verify that the target frequency falls within the 130kHz to 66.6MHz range and that the 2-Wire interface is compatible with the system controller. Consider the industrial temperature range (-40°C to +85°C) for environmental suitability.

Part Context

The DS1086L series serves as a low-cost alternative to crystal oscillators, integrating the oscillator and PLL functions into a single chip. The 'LU' designation indicates the industrial temperature grade and µSOP package. This model replaces discrete crystal and multiplier circuits in compact digital designs.

Replacement Considerations

Direct substitutes include other DS1086LU variants with different frequency presets or dither settings. Cross-reference the specific output frequency and dither percentage requirements before swapping. Note that ordering suffixes may denote packaging or specific factory trims rather than functional changes.