DS1087LU-4CL

Overview

The DS1087LU-4CL+ is a programmable clock generator from the EconOscillator series, manufactured by Analog Devices / Maxim Integrated. It operates on a single 3.3V supply with a voltage range of 2.7V to 3.6V and consumes 15mA of operating current. The device features one output capable of reaching a maximum frequency of 66.6 MHz, derived from an input frequency up to 400 kHz. It utilizes a uSOP-8 surface-mount package and functions within a temperature range of -40°C to +85°C. This component integrates spread-spectrum capabilities to reduce electromagnetic interference.

Feature Summary

• Integrated 3.3V Spread-Spectrum functionality for EMC reduction
• Single output configuration with max frequency of 66.6 MHz
• Compact uSOP-8 surface-mount packaging
• Industrial temperature range operation (-40°C to +85°C)

Applications

• General-purpose clock generation in embedded systems
• EMC-sensitive digital circuits requiring spread-spectrum modulation
• Low-power portable devices utilizing 3.3V logic

Procurement Notes

Verify the specific suffix (+) indicates RoHS compliance when sourcing replacements. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the uSOP-8 footprint matches the target PCB design. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

Selection Notes

Select this component when a single-ended clock output near 66.6 MHz is required with minimal external components. The spread-spectrum feature is suitable for applications where radiated emissions must be minimized without additional filtering. Verify that the 400 kHz maximum input frequency aligns with the system's reference source. Consider the 15mA current draw against total system power budgets.

Part Context

This part belongs to the DS1087L family of programmable oscillators. Variants such as DS1087LU-450/T&R indicate different frequency configurations or tape-and-reel packaging options. The 'LU' designation typically refers to the lead-free and package type within the Maxim Integrated portfolio. Related parts like the DS1089LU offer similar functionality with different frequency specifications.

Replacement Considerations

Direct substitutes include other variants within the DS1087LU series, such as DS1087LU-4CL/W. Check for equivalent packages like 8-TSSOP if pin compatibility allows. Verify that replacement parts support the same 3.3V supply and spread-spectrum requirements.