SY58013UMG-TR

Clock Buffers, Drivers Overview

The SY58013UMG-TR is a Precision Edge® 1:2 fanout buffer and translator manufactured by Microchip Technology. It features 400mV LVPECL outputs with internal input termination, supporting clock frequencies up to 6GHz and data rates up to 10.7Gbps. The device accepts differential inputs from LVPECL, LVDS, or CML sources via a unique VT pin architecture. Key electrical parameters include a maximum propagation delay of 250ps, channel-to-channel skew under 15ps, and typical RMS phase jitter of 55fs. It operates on a single supply voltage ranging from 2.375V to 3.6V within an industrial temperature range of -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Low Jitter Performance: Typical 55fs RMS phase jitter (12kHz-20MHz) and <15ps max skew.
• Flexible Input Interface: Internal 50-ohm termination on IN/IN pins connected to the VT pin supports DC-coupled and AC-coupled LVPECL, LVDS, and CML signals as low as 100mV.
• High-Speed Operation: Supports >6GHz fMAX clock and 10.7Gbps NRZ data patterns.
• Integrated Reference Voltage: VREF-AC pin provides bias for AC-coupled inputs.

Clock Buffers, Drivers Applications

• SONET and GigE clock distribution
• Fibre Channel clock and data distribution
• Backplane signal distribution
• OC-48, OC-48+FEC, and XAUI data distribution

Clock Buffers, Drivers Procurement Notes

Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm RoHS compliance status and check for specific manufacturing lot codes if required for traceability. Ensure proper ESD handling procedures are followed during storage and assembly due to the high-speed nature of the device.

Clock Buffers, Drivers Selection Notes

Select the SY58013UMG-TR when a 1:2 fanout buffer with 400mV LVPECL outputs is required. Choose this part over the SY58011U if LVPECL compatibility is needed instead of CML, or over the SY58012U if lower output swing (400mV vs 800mV) is acceptable. Ensure the design can accommodate the internal input termination requirements via the VT pin.

Clock Buffers, Drivers Part Context

This component belongs to Micrel’s (now Microchip's) Precision Edge® product line of high-speed logic devices. It is functionally similar to the SY58011U and SY58012U but specifically optimized for 400mV LVPECL outputs. The 'TR' suffix indicates the device is supplied in tape and reel packaging for automated surface-mount assembly.

Clock Buffers, Drivers Replacement Considerations

The SY58011UMG-TR offers CML outputs instead of LVPECL. The SY58012UMG-TR provides 800mV LVPECL outputs. Verify output voltage levels and interface compatibility before substituting these parts.

Clock Buffers, Drivers FAQ

How should the VT pin be configured for AC-coupled inputs?

For AC-coupled inputs, connect the VREF-AC pin directly to the VT pin. The VREF-AC pin biases to VCC – 1.2V and should be bypassed with a 0.01µF low ESR capacitor to VCC.

What is the recommended termination for unused output pairs?

Unused output pairs (Q and /Q) may be left floating without impacting jitter. If balancing is required, terminate the unused pair using the parallel termination network described in the datasheet.

Can the SY58013UMG-TR accept LVDS inputs?

Yes, the device accepts LVDS differential signals. The unique 3-pin input termination architecture allows it to interface with LVDS, LVPECL, and CML signals without external level-shifting networks.