SY10EL15ZG

Clock Buffers, Drivers Overview

The SY10EL15ZG is a low skew 1:4 clock distribution chip from the Precision Edge series, manufactured by Micrel (now Microchip Technology). It operates in an industrial temperature range (-40°C to +85°C) and features a 16-pin SOIC package with lead-free NiPdAu finish. The device supports differential or single-ended ECL/PECL inputs, offering 50ps output-to-output skew. Key specifications include a propagation delay of 470ps typical at 25°C for differential inputs, synchronous enable/disable functionality, and a multiplexed clock input for scan/test clock integration.

Clock Buffers, Drivers Feature Summary

• 50ps maximum output-to-output skew for precise timing
• Synchronous enable/disable prevents runt clock pulses
• Multiplexed clock input allows selection between system and test clocks
• 75KΩ internal input pull-down resistors on SEL pin

Clock Buffers, Drivers Applications

• Low skew clock distribution in high-speed digital systems
• Integration of lower speed scan or test clocks with high-speed system clocks
• ECL/PECL based circuit designs requiring precise timing alignment

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'ZG' confirms the Industrial temperature range (-40°C to +85°C) and Pb-Free NiPdAu lead finish as specified in the datasheet table. Ensure compatibility with existing 16-pin SOIC footprints. Confirm that the device meets the specific voltage requirements for the 10EL series (VEE -4.75V to -5.5V) if used in place of other variants.

Clock Buffers, Drivers Selection Notes

Select the SY10EL15ZG when industrial temperature operation is required alongside lead-free compliance. The 10EL variant specifies a VEE operating range of -4.75V to -5.5V, distinct from the 100EL series which supports -4.2V to -5.5V. Choose this part over the ZC (Commercial) variant if environmental conditions exceed commercial limits. The synchronous enable feature is critical for applications avoiding runt pulse generation during state changes.

Clock Buffers, Drivers Part Context

This component belongs to the SY10/100EL15 family of low skew clock distributors. The SY10EL15ZG specifically denotes the industrial grade version with Pb-free packaging. It shares functional similarities with the SY100EL15 but differs in DC electrical characteristics and supply voltage ranges. The device was originally designed by Micrel, Inc., before its acquisition by Microchip Technology.

Clock Buffers, Drivers Replacement Considerations

Direct substitutes within the same package and function include SY10EL15ZI (Industrial, Sn-Pb) or SY100EL15ZG (Industrial, Pb-Free, wider VEE range). Verify voltage compatibility, as the 10EL series has a stricter VEE minimum (-4.75V) compared to the 100EL series (-4.2V). Ensure thermal management aligns with the -40°C to +85°C operating range.