SY58031UMG

Clock Buffers, Drivers Overview

The SY58031UMG is a high-speed, fully differential CML 1:8 fanout buffer designed for precision clock distribution. It processes signals up to 6GHz with less than 20ps output-to-output skew and 75fs RMS phase jitter. The device features internal I/O termination, accepting inputs as low as 100mV without external level-shifting or termination networks. It operates from a 2.5V ±5% or 3.3V ±10% supply within the industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Precision 1:8 CML fanout buffer with <20ps skew and 75fs RMS jitter
• Unique 3-pin input termination architecture supporting DC/AC-coupled LVPECL, LVDS, and CML
• Guaranteed AC performance: >6GHz frequency, <60ps rise/fall time, <270ps propagation delay
• Available in 32-pin QFN package

Clock Buffers, Drivers Applications

• SONET and GigE clock distribution
• Fibre Channel clock and data distribution
• Network routing engine timing distribution
• High-end multiprocessor synchronous clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix against the datasheet. The 'MG' suffix indicates a 32-pin QFN package in an industrial temperature range. Confirm whether the specific requirement is for tube packaging (SY58031UMG) or tape and reel (SY58031UMGTR), as these represent distinct physical configurations.

Clock Buffers, Drivers Selection Notes

Select this component when a low-jitter 1:8 split is required for CML signals. Ensure the design supports the unique VT pin configuration for internal termination. For applications requiring LVPECL outputs instead of CML, consider the SY58032U or SY58033U variants from the same product line.

Clock Buffers, Drivers Part Context

The SY58031UMG belongs to Micrel’s Precision Edge product line, which focuses on high-speed, low-jitter timing solutions. It is part of a family that includes the SY58032U and SY58033U, differentiated primarily by their output voltage standards while sharing similar internal termination and fanout capabilities.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers include SY58032U and SY58033U. These devices share the same form factor and input characteristics but provide LVPECL or 400mV fanout outputs respectively.