SY89474UMG-TR

Signal Switches, Multiplexers, Decoders Overview

The SY89474UMG-TR is a Precision LVDS 2:1 multiplexer with 1:2 fanout and internal termination. It processes clocks up to 2.5GHz and data up to 2.5Gbps. The device operates from a 2.5V ±5% supply voltage within an industrial temperature range of -40°C to +85°C. It features guaranteed AC performance including less than 470ps propagation delay, less than 150ps rise/fall times, and less than 20ps output-to-output skew. The component utilizes a unique input isolation design to minimize crosstalk and accepts DC- or AC-coupled inputs as small as 100mV (200mVpp).

Signal Switches, Multiplexers, Decoders Feature Summary

• Selects between two differential input channels and provides two copies of the selected input.
• Features a unique patent-pending input termination architecture that directly interfaces to any differential signal without level shifting or external termination resistor networks.
• Provides ultra-low jitter performance suitable for high-speed clock switching applications.

Signal Switches, Multiplexers, Decoders Applications

• Clock switching
• Data distribution

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Micrel Inc., which was acquired by Microchip Technology. Confirm the specific package marking and lead finish details match the required specifications for your assembly process. Ensure compatibility with the 2.5V power supply requirements and check for any relevant RoHS compliance documentation provided by the current supplier.

Signal Switches, Multiplexers, Decoders Selection Notes

This component is designed for high-speed differential signal routing where low jitter and precise timing are critical. It supports both AC and DC coupling, offering flexibility in interface design. Consider the QFN-24 package dimensions and thermal characteristics during PCB layout. Verify that the input signal levels meet the minimum swing requirements for reliable operation across the specified temperature range.

Signal Switches, Multiplexers, Decoders Part Context

The SY89474U belongs to Micrel’s Precision Edge product line, focusing on high-speed, precision analog and mixed-signal solutions. This series includes various multiplexers and drivers optimized for telecommunications and networking applications. The device integrates internal termination to simplify board design and reduce component count compared to discrete solutions.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SY89473UMG-TR

Signal Switches, Multiplexers, Decoders FAQ

What types of input signals does the SY89474UMG-TR accept?

The device accepts CML, PECL, and LVDS signals, supporting both DC-coupled and AC-coupled configurations.

How is the input termination handled in this multiplexer?

It features a unique 3-pin input termination architecture that internally terminates each pin of a differential pair to a VT pin through 50Ω, eliminating the need for external termination resistors in the signal path.