SY58609UMG-TR

Signal Switches, Multiplexers, Decoders Overview

The SY58609UMG-TR is a high-speed, fully differential CML 2:1 multiplexer from the Precision Edge product line. It processes clock signals up to 2.5GHz and data patterns up to 4.25Gbps with less than 20ps skew and under 10ps peak-to-peak total jitter. The device operates on a 2.5V ±5% or 3.3V ±10% supply within an industrial temperature range of -40°C to +85°C. It features internal termination for LVPECL, LVDS, or CML inputs as small as 100mV (200mVpp) without external level-shifting networks. Outputs provide 400mV CML swings with rise/fall times under 90ps.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrated fail-safe input mechanism prevents output oscillation when input signals are invalid or absent.
• Patented MUX input isolation design minimizes adjacent channel crosstalk.
• Unique three-pin input termination architecture supports AC- or DC-coupled interfaces without external resistor networks.
• Ultra-low jitter design ensures stable signal integrity for high-frequency applications.

Signal Switches, Multiplexers, Decoders Applications

• Data distribution for OC-48, OC-48+FEC, and XAUI
• SONET clock and data distribution
• Fibre Channel clock and data distribution
• Gigabit Ethernet clock and data distribution

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the component matches the specific Micrel/ Microchip datasheet specifications for the SY58609U series. Confirm the package type is QFN-16 and the operating range covers the required industrial temperature limits. Ensure compatibility with the intended power supply voltage (2.5V or 3.3V). Check for RoHS compliance status if required by your manufacturing standards.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a high-speed 2:1 multiplexer with low jitter and integrated input termination is required. It is suitable for interfacing directly with LVPECL, LVDS, or CML sources without additional level shifting. Consider alternative models like the SY58610U or SY58611U if LVPECL or LVDS outputs are needed instead of CML.

Signal Switches, Multiplexers, Decoders Part Context

The SY58609UMG-TR belongs to the Precision Edge family of high-speed logic devices originally developed by Micrel, which was acquired by Microchip Technology. This series focuses on ultra-low jitter performance for demanding telecommunications and networking applications. The 'UMG' suffix indicates the QFN-16 package, while '-TR' denotes the tape and reel packaging format.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SY58610UMG-TR

Signal Switches, Multiplexers, Decoders FAQ

How does the Fail Safe Input (FSI) feature function?

The FSI circuit senses the amplitude of the input signal. If the signal drops below approximately 30mVpk or is absent, it latches the output to its last valid state to prevent metastability and oscillation.

What is the maximum data throughput rate?

The device is capable of processing data patterns up to 4.25Gbps.