SY58034UMG-TR

Clock Buffers, Drivers Overview

The SY58034UMG-TR is a high-speed 1:6 fanout buffer featuring an integrated 2:1 multiplexer input for clock switchover applications. It operates on a single supply voltage of 2.5V ±5% or 3.3V ±10%, supporting clock frequencies up to 6GHz. The device provides six ultra-low skew CML output copies with guaranteed propagation delays under 290ps and output-to-output skew below 20ps. It incorporates unique internal 50Ω input termination and accepts AC- or DC-coupled differential signals as small as 100mV without external level shifting. The component is housed in a 32-pin QFN package.

Clock Buffers, Drivers Feature Summary

• Integrated 2:1 MUX input enables redundant clock switchover functionality via a TTL/CMOS-compatible SEL pin.
• Ultra-low jitter performance with 60fs RMS phase jitter and less than 0.7ps RMS crosstalk-induced jitter.
• Unique 3-pin input termination architecture minimizes crosstalk and supports flexible interface configurations.
• Internal 50Ω source termination on outputs ensures low reflection and delivers a typical 400mV single-ended swing.

Clock Buffers, Drivers Applications

• Redundant clock distribution systems
• SONET/SDH clock distribution networks
• Fibre Channel distribution architectures
• Gigabit Ethernet clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'TR' corresponds to the tape and reel packaging format, distinct from the tube-packaged SY58034UMG. Confirm that the specific revision matches the required PCB footprint and thermal pad soldering specifications for the 32-pin QFN package.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:6 fanout buffer with built-in redundancy switching is required. Ensure the design accommodates the 2.5V or 3.3V supply rails and utilizes the VREF-AC pins for proper AC-coupling biasing if interfacing with LVPECL sources.

Clock Buffers, Drivers Part Context

This part belongs to Micrel's Precision Edge® product line, designed for high-speed precision timing applications. It serves as a specialized solution for distributing reference clocks across multiple high-speed receivers while maintaining signal integrity and minimizing jitter accumulation.

Clock Buffers, Drivers Replacement Considerations

For applications requiring LVPECL outputs instead of CML, consider the SY58035U or SY58036U Multiplexers, which offer similar 1:6 fanout capabilities with 2:1 MUX inputs but provide different output voltage swings.