SY89544UMG-TR

Signal Switches, Multiplexers, Decoders Overview

The SY89544UMG-TR is a differential 4:1 multiplexer from the Precision Edge family, operating on a single 2.5V supply with an industrial temperature range of -40°C to +85°C. It supports data rates up to 3.2 Gbps and features ultra-low jitter performance, including less than 1 ps RMS random jitter and less than 10 ps peak-to-peak deterministic jitter. The device provides LVDS-compatible outputs with a typical swing of 350 mV and incorporates internal input termination accessible via VT pins for flexible interface configurations.

Signal Switches, Multiplexers, Decoders Feature Summary

• Ultra-low jitter design ensures signal integrity for high-speed applications
• Internal input termination network allows direct interfacing with various logic standards
• LVDS-compatible output stage provides low voltage differential signaling
• CMOS/TTL-compatible select inputs simplify control logic integration

Signal Switches, Multiplexers, Decoders Applications

• SONET/SDH channel selection
• Fibre Channel multi-channel selection
• Gigabit Ethernet multi-channel selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the component matches the specified 2.5V supply requirement and operates within the designated industrial temperature range. Confirm package authenticity by checking markings against the 32-Lead QFN specifications. Ensure proper handling procedures are followed due to moisture sensitivity classification. Cross-reference datasheet revision A details to confirm all electrical characteristics align with current manufacturing standards.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a fast, low-jitter differential multiplexer is required for high-speed serial data routing. It is suitable for designs needing a single 2.5V power rail and LVDS outputs. Consider alternatives like the SY89545L if a 3.3V supply is necessary, or the SY89546U/SY89547L if dual differential outputs are needed instead of a single output path.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to Microchip's Precision Edge product family, designed for high-performance timing and switching applications. It succeeds earlier Micrel designs, maintaining compatibility while offering optimized jitter performance. The device integrates unique input isolation to minimize crosstalk between channels, making it ideal for dense multi-channel systems requiring clean signal paths.

Signal Switches, Multiplexers, Decoders Replacement Considerations

For 3.3V operation, consider the SY89545L. For dual differential outputs, evaluate the SY89546U or SY89547L. These parts share similar form factors but differ in voltage requirements and output configuration.

Signal Switches, Multiplexers, Decoders FAQ

How does the SY89544UMG-TR handle different input logic standards?

The device accepts AC-coupled and DC-coupled inputs (LVDS, LVPECL, CML) through its unique VT pin termination network, eliminating the need for external resistor-bias networks.

What is the maximum data throughput rate guaranteed over temperature?

The device guarantees a data rate throughput of greater than 3.2 Gbps across the full industrial temperature range.