SY58038UMY-TR

Signal Switches, Multiplexers, Decoders Overview

The SY58038UMY-TR is an ultra-precision, high-speed 8:1 multiplexer with a 1:2 LVPECL fanout buffer. It operates from a 2.5V ±5% or 3.3V ±10% supply and supports DC to 4.5Gbps throughput. The device features low jitter (72fsrms typical) and low skew (<15ps output-to-output). It accepts differential inputs as small as 100mV via a unique 3-pin termination architecture. Outputs provide 800mV LVPECL swing with rise/fall times under 100ps. It is housed in a 44-pin QFN package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Selects between one of eight inputs and provides two precise, low-skew LVPECL output copies
• Features a unique, patented channel-to-channel isolation design for superior crosstalk performance
• Includes a patented input termination and VT pin that accepts both DC- and AC-coupled signals
• Ultra-low jitter design optimized for precision telecom and enterprise server distribution

Signal Switches, Multiplexers, Decoders Applications

• Data communication systems
• SONET/SDH data/clock applications
• Fibre Channel applications
• Gigabit Ethernet applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the component matches the specific Micrel/SY58038U datasheet specifications. Confirm the ordering suffix indicates tape and reel packaging. Ensure the operating temperature range aligns with industrial requirements. Validate the package type against the required PCB footprint.

Signal Switches, Multiplexers, Decoders Selection Notes

Choose this component when requiring an 8:1 multiplexer with integrated fanout buffering. It is suitable for applications needing low jitter and fast rise/fall times. Consider its compatibility with CML, PECL, and LVDS input standards. Evaluate the power supply voltage options for system integration.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Precision Edge product line, designed for high-performance timing and communications markets. It is manufactured by Micrel, which was acquired by Microchip Technology. The device is intended for use in enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SY58038UMY

Signal Switches, Multiplexers, Decoders FAQ

What types of differential signals can the SY58038UMY-TR accept?

The device accepts AC- or DC-coupled differential signals such as CML, PECL, and LVDS, with input swings as small as 100mV.

How does the SY58038UMY-TR handle input termination?

It utilizes a unique, patented 3-pin input termination architecture that directly interfaces to differential signals without requiring external level shifting or termination resistor networks in the signal path.