DS1087LU-266

Overview

The DS1087LU-266 is a 3.3V spread-spectrum EconOscillator clock generator manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.7V to 3.6V and supports a maximum output frequency of 26.6MHz. The device features a single circuit configuration with a 2:1 input-to-output ratio, utilizing a clock input and providing a clock output. Designed for surface-mount installation, it is housed in an 8-uMAX/uSOP package (8-TSSOP/8-MSOP compatible). The component functions without an internal PLL or divider/multiplier circuitry.

Feature Summary

• Integrated spread-spectrum capability for EMC reduction
• Single-channel clock generation at up to 26.6MHz
• Low-voltage operation from 2.7V to 3.6V
• Compact 8-pin uMAX/uSOP surface-mount package

Applications

• General-purpose clock generation for digital systems
• EMC-sensitive applications requiring spread-spectrum modulation
• Portable devices powered by 3.3V logic supplies

Procurement Notes

Verify the specific suffix 'T&R' if tape-and-reel packaging is required, as standard availability may vary. Confirm RoHS compliance status for the exact orderable part number, as historical data indicates variations across the DS1087L family. Check current lifecycle status, as this model may be subject to discontinuation notices.

Selection Notes

Select the DS1087LU-266 when a fixed 26.6MHz clock source with spread-spectrum benefits is needed. Ensure the design accommodates the 2.7V–3.6V supply range. Compare against the DS1087LU-216 if a lower 16.6MHz frequency is sufficient, noting potential differences in RoHS certification between variants.

Part Context

This component belongs to the Maxim Integrated EconOscillator series, which provides low-cost, low-power clock solutions. The DS1087L family is distinct from programmable synthesizers, offering fixed-frequency outputs with integrated jitter attenuation capabilities for noise reduction in sensitive analog circuits.

Replacement Considerations

The DS1087LU-216 serves as a functional alternative for designs requiring a 16.6MHz output instead of 26.6MHz. Verify pinout compatibility and electrical specifications before substitution.