DS1086U+

Overview

The DS1086U+ is a programmable clock generator producing spread-spectrum square-wave outputs from 260kHz to 133MHz. It features selectable 2% or 4% dithering to reduce radiated emissions. The device operates on a 5V supply and includes power-down and glitchless output-enable controls. All settings are stored in nonvolatile EEPROM, enabling standalone operation without external timing components.

Feature Summary

• Programmable frequency range of 260kHz to 133MHz with 10kHz master frequency step size
• Selectable 2% or 4% spread-spectrum dithering for EMI reduction
• Nonvolatile EEPROM storage for register settings
• Glitchless output-enable control and power-down mode

Applications

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

Procurement Notes

Verify the specific package type (µSOP) and temperature range (0°C to +70°C) against design requirements. Confirm that the 5V supply voltage aligns with system power rails. Ensure the 2-wire interface compatibility matches the host controller's I2C capabilities.

Selection Notes

Select this component when a standalone, programmable clock source with spread-spectrum capabilities is required. The µSOP package is suitable for space-constrained designs. Consider the prescaler settings if lower output frequencies are needed, as the internal oscillator ranges from 66MHz to 133MHz.

Part Context

The DS1086U+ belongs to the DS1086 EconOscillator family. The 'U' suffix indicates an 8-pin µSOP package, while the '+' denotes lead-free/RoHS compliance. It serves as a direct replacement for crystal oscillators in applications requiring programmability and EMI mitigation.

Replacement Considerations

Direct pin-compatible replacements within the same family include DS1086Z+ (SO package). Verify that any substitute maintains the 5V operating voltage and 2-wire serial interface protocol.