SY58020UMG-TR

Clock Buffers, Drivers Overview

The SY58020UMG-TR is a high-speed, fully differential 1:4 CML fanout buffer manufactured by Microchip Technology. It operates from a single 2.5V or 3.3V supply and processes clock signals up to 6GHz. The device features an internal 3-pin input termination architecture that accepts LVPECL, LVDS, and CML inputs with swings as low as 100mV without external resistors. It provides four identical output copies with less than 15ps skew and typical additive phase jitter of 27fsRMS. Outputs are optimized for 400mV swing into 50Ω loads.

Clock Buffers, Drivers Feature Summary

• Precision 1:4 CML fanout buffer with guaranteed AC performance over temperature/voltage
• Maximum operating frequency of 6GHz with propagation delay under 250ps
• Low-jitter performance with 27fsRMS typical additive phase jitter at 622MHz carrier
• Unique patented input termination accepting DC-coupled and AC-coupled differential inputs

Clock Buffers, Drivers Applications

• SONET and GigE clock distribution
• Fibre Channel clock and data distribution
• Backplane distribution
• Data distribution for OC-48, OC-48+FEC, and XAUI
• High-end multiprocessor synchronous clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix TR indicates tape and reel packaging. Confirm the component meets industrial temperature range requirements (-40°C to +85°C). Ensure the design supports the specified power supply voltages of 2.5V ±5% or 3.3V ±10%. Check for moisture sensitivity handling requirements during assembly.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:4 fanout buffer is required for CML signals. Consider the SY58021U or SY58022U if LVPECL outputs with higher voltage swings (800mV or 400mV) are needed instead of standard CML outputs. Verify input signal compatibility with the internal termination network for LVPECL, LVDS, or CML sources.

Clock Buffers, Drivers Part Context

The SY58020U belongs to Micrel’s Precision Edge product line, now part of Microchip Technology. It is designed for high-speed timing and communications applications requiring precise clock distribution. The device utilizes a QFN-16 package to minimize parasitic inductance and support high-frequency operation.

Clock Buffers, Drivers Replacement Considerations

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