SY89833LMI

Clock Buffers, Drivers Overview

The SY89833LMI is a 3.3V ultra-precision 1:4 LVDS fanout buffer/translator with internal termination, manufactured by Microchip Technology (originally Micrel). It supports DC-to >2GHz throughput with <600ps propagation delay and <20ps within-device skew. The device features a unique internal termination design accessible via the VT pin, allowing interface to various logic standards. It operates from a 3.3V supply (-40°C to +85°C) in a 16-pin QFN package.

Clock Buffers, Drivers Feature Summary

• Guaranteed AC performance: <600ps propagation delay, <20ps within-device skew, <150ps rise/fall times
• Ultra-low jitter design: 98fs RMS phase jitter
• Patented Any-In input termination with VT pin accepts DC- and AC-coupled inputs
• High-speed LVDS outputs with internal 100Ω termination

Clock Buffers, Drivers Applications

• Processor clock distribution
• SONET clock distribution
• Fibre Channel clock distribution
• Gigabit Ethernet clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) as specified in the datasheet's Ordering Information table. Confirm the package type is QFN-16 (3mm x 3mm) and lead finish is NiPdAu Pb-Free. Cross-reference the manufacturer part number SY89833LMG or SY89833LMG TR for equivalent specifications.

Clock Buffers, Drivers Selection Notes

Select this component for applications requiring ultra-low skew (<20ps) and high-speed LVDS buffering up to 2GHz. Ensure the design accommodates the 3.3V power supply requirement and utilizes the VT pin for flexible input termination matching different logic standards. Consider the SY89832U if a 2.5V supply is required instead.

Clock Buffers, Drivers Part Context

The SY89833L belongs to Micrel’s high-speed clock synchronization family. It is designed for ultra-low skew applications and offers flexibility through its patented Any-In input termination architecture. The device integrates internal termination for both inputs and outputs, simplifying board layout for high-speed differential signaling.

Clock Buffers, Drivers Replacement Considerations

The SY89832U provides similar functionality but operates from a 2.5V ±5% supply instead of 3.3V. Verify voltage compatibility and I/O levels before substitution. Consult the Micrel website for other fanout buffers with different I/O combinations if necessary.

Clock Buffers, Drivers FAQ

How does the SY89833L handle input termination?

It features a patented Any-In input termination design with a VT pin that allows access to the termination network, supporting both DC- and AC-coupled inputs without external resistors.

What is the maximum operating frequency?

The device supports a maximum frequency of 2.0 GHz with an output voltage swing of at least 200mV.

What is the typical phase jitter performance?

The SY89833L guarantees an ultra-low RMS phase jitter of 98 fs over an integration range of 12kHz to 20MHz at an output frequency of 622MHz.