SY89540UMY

Signal Switches, Multiplexers, Decoders Overview

The SY89540UMY is a low-jitter, high-speed 4x4 LVDS crosspoint switch from the Precision Edge product line. It guarantees data rates up to 3.2Gbps over temperature and voltage. The device features a unique 3-pin input termination architecture that directly interfaces with AC or DC-coupled differential signals as small as 100mV without external level shifting or termination networks. It operates on a 2.5V ±5% supply within an industrial temperature range of –40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Patent-pending channel-to-channel isolation design for superior crosstalk performance
• Internal 50Ω input termination accepting DC- and AC-coupled differential inputs
• Ultra-low jitter design with guaranteed AC performance across operating conditions

Signal Switches, Multiplexers, Decoders Applications

• SONET/SDH channel select applications
• Fibre Channel multi-channel select applications
• Gigabit Ethernet multi-channel select applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'MY' corresponds to the QFN-44 package type and Matte-Sn lead finish. Confirm the component meets RoHS compliance standards. Ensure the procurement documentation references the correct datasheet version M9999-120607-C for accurate electrical specifications.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for precision telecom and enterprise server/storage distribution where low skew and high throughput are required. The internal termination simplifies interface design by eliminating external resistor networks. Verify compatibility with LVDS, LVPECL, and CML signal types based on the VT pin configuration.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to Micrel's Precision Edge series, designed for high-speed signal routing. It functions as a configurable crosspoint switch allowing any input pair to connect to any output pair. The device supports both buffer mode (1:4 fanout) and independent crosspoint switching configurations via TTL/CMOS control pins.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SY89540UMYTR

Signal Switches, Multiplexers, Decoders FAQ

How does the device handle input termination?

It utilizes a patent-pending 50Ω input termination architecture where each side of the differential input pair terminates to a VT pin, providing center-tap flexibility.

What is the maximum operating frequency?

The device guarantees AC performance with a throughput up to 3.2Gbps over the full industrial temperature range.