SY58011UMG

Clock Buffers, Drivers Overview

The SY58011UMG is a Precision Edge® 7GHz, 1:2 CML fanout buffer/translator with internal I/O termination. It processes clock signals up to 7GHz or data patterns up to 10.7Gbps. The device features low jitter performance with a typical RMS phase jitter of 49fs and guarantees AC performance including less than 60ps rise/fall times and less than 250ps propagation delay. It accepts differential inputs as low as 100mV from LVPECL, LVDS, or CML sources via a unique 3-pin input termination architecture. Outputs provide 400mV swing into 50-ohm loads. Operating voltage ranges from 2.375V to 3.6V, supporting industrial temperature operation from -40°C to +85°C in a 16-pin QFN package.

Clock Buffers, Drivers Feature Summary

• 7GHz maximum operating frequency for clocks and 10.7Gbps for NRZ data
• Low jitter performance with 49fs RMS phase jitter (typical) at 622MHz
• Unique 3-pin input termination supports DC-coupled and AC-coupled LVPECL, LVDS, and CML inputs
• Source terminated 50-ohms CML outputs with 400mV typical swing

Clock Buffers, Drivers Applications

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

Clock Buffers, Drivers Procurement Notes

Verify the component origin, as the datasheet identifies Micrel, Inc., which was acquired by Microchip Technology. Confirm that the specific ordering suffix 'MG' corresponds to the Pb-Free 16-pin QFN package variant listed in the official documentation. Ensure compliance with RoHS standards and check for any relevant PCN updates regarding assembly sites or material changes.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:2 fanout buffer with CML outputs is required for high-speed signal integrity. It is suitable for translating between LVPECL, LVDS, and CML input standards without external termination networks. Consider alternative models like the SY58012U or SY58013U if LVPECL output swings are needed instead of CML. Ensure the design accommodates the 2.375V to 3.6V supply range and the thermal requirements of the exposed pad QFN package.

Clock Buffers, Drivers Part Context

The SY58011U belongs to Micrel’s Precision Edge® product line of high-speed logic devices. Following the acquisition of Micrel by Microchip Technology, these products are now distributed under the Microchip brand. The device is designed for applications requiring precise timing and low skew in high-frequency digital systems.

Clock Buffers, Drivers Replacement Considerations

For LVPECL outputs, consider the SY58012U (800mV swing) or SY58013U (400mV swing). Verify pin compatibility and electrical specifications before substitution.

Clock Buffers, Drivers FAQ

How does the SY58011U handle different input signal types?

It uses a unique 3-pin input termination architecture that accepts DC-coupled or AC-coupled differential inputs from LVPECL, LVDS, or CML sources without requiring external level-shifting or termination resistor networks.

What is the maximum operating frequency of the device?

The device supports a maximum clock frequency of 7GHz and can process NRZ data patterns up to 10.7Gbps.

How should unused output pairs be handled?

Unused output pairs may be left floating with no impact on jitter performance.