SY100E111AEJC

Clock Buffers, Drivers Overview

The SY100E111AEJC is a low skew 1-to-9 differential clock driver from the Precision Edge 100E series. It accepts one signal input and fans it out to nine identical differential outputs. The device supports both 5V and 3.3V power supply options, enabling operation in PECL mode for high-performance clock distribution. Key electrical specifications include a maximum part-to-part skew of 200ps and an output-to-output skew of 50ps. It features voltage and temperature compensated outputs, internal 75KΩ input pulldown resistors, and an enable input that forces outputs LOW/HIGH when asserted HIGH.

Clock Buffers, Drivers Feature Summary

• Low skew performance with 200ps max part-to-part skew and 50ps max output-to-output skew
• Supports 5V (+4.2V to +5.5V) and 3.3V (+3.0V to +3.8V) power supplies
• Includes an enable input to disable all outputs simultaneously
• Features internal 75KΩ input pulldown resistors and VBB reference output

Clock Buffers, Drivers Applications

• High-performance clock distribution across backplanes
• Board-level clock fan-out in 5V or 3.3V systems
• PECL compatible logic circuits requiring low jitter

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'C' indicates the commercial operating temperature range (-40°C to +85°C). Confirm the package type is J28-1 (28-pin PLCC). Check for lead finish specifications; standard versions use Sn-Pb, while Pb-Free variants require specific suffixes like 'Y' or 'Z'. Ensure compatibility with existing ECL/PECL termination schemes.

Clock Buffers, Drivers Selection Notes

Select this component when low skew is critical for clock distribution networks. The 1:9 ratio suits applications requiring a single source to drive multiple destinations. Ensure the system operates within the specified 5V or 3.3V ranges. Note that differential outputs must be terminated into 50Ω on both sides to maintain specified skew performance, even if only one side is used.

Clock Buffers, Drivers Part Context

This device belongs to the Micrel Precision Edge 100E series, which offers improved jitter performance over previous generations. It is functionally similar to the SY10/100E111 but adds low voltage operation capabilities. The part is fully compatible with industry standard Motorola MC10/100E111 levels, facilitating migration from legacy designs.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.