SY89854UMG

Clock Buffers, Drivers Overview

The SY89854UMG is a precision, high-speed, fully differential 1:4 LVPECL fanout buffer/translator manufactured by Microchip Technology. It operates from a 2.5V ±5% or 3.3V ±10% supply and supports clock frequencies up to 3.5 GHz. The device provides four identical output copies with less than 20ps skew and under 10ps total jitter. It features a unique 3-pin input termination architecture that accepts AC- or DC-coupled differential signals as small as 100mV without external level shifting or termination networks.

Clock Buffers, Drivers Feature Summary

• Precision 1:4 LVPECL fanout buffer with guaranteed AC performance over temperature and supply voltage
• Ultra-low jitter design: <1ps RMS random jitter and <10ps peak-to-peak total jitter
• Unique patent-pending 3-pin input termination accepting CML, PECL, and LVDS inputs
• Available in an ultra-small 3mm x 3mm 16-pin QFN package

Clock Buffers, Drivers Applications

• SONET and All GigE clock distribution
• Fibre Channel clock and data distribution
• Backplane distribution

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'MG' corresponds to the 16-pin QFN package with industrial temperature range (-40°C to +85°C) and Pb-free NiPdAu lead finish. Confirm whether the specific procurement requirement is for tube packaging (standard) or tape and reel (suffix TR). Ensure the source documentation explicitly lists this part number as active or available.

Clock Buffers, Drivers Selection Notes

Select the SY89854UMG when a low-power, high-speed 1:4 fanout buffer is required for LVPECL systems. It is suitable for applications needing internal input termination for CML, PECL, or LVDS sources. Verify that the system power supply aligns with the 2.5V or 3.3V operating ranges and that the 16-pin QFN footprint fits the PCB layout constraints.

Clock Buffers, Drivers Part Context

This component belongs to Micrel’s Precision Edge product line, which was acquired by Microchip Technology. It serves as a clock distribution solution within the broader category of clock buffers and drivers. Related products include the SY58021U, which offers similar functionality at higher frequencies.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.