SY100EP57VK4G

Signal Switches, Multiplexers, Decoders Overview

The SY100EP57VK4G is a high-speed, low-skew, fully differential PECL/ECL 4:1 multiplexer manufactured by Microchip Technology. It operates within a flexible power supply range of 3.0V to 5.5V and supports an industrial temperature range from –40°C to +85°C. The device features a maximum toggle frequency exceeding 3GHz, with propagation delays under 520ps (D-to-Q) and rise/fall times below 220ps. It is housed in a 20-pin TSSOP package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Fully differential 4:1 PECL/ECL multiplexing architecture
• High-speed operation supporting toggle frequencies above 3GHz
• Flexible power supply compatibility for both PECL and ECL modes
• Integrated VBB reference outputs for AC-coupled applications

Signal Switches, Multiplexers, Decoders Applications

• High-speed clock distribution networks
• Data routing in telecommunications systems
• Signal selection in test and measurement equipment

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND). Confirm that the specific ordering suffix matches the required lead finish and packaging format. Ensure compliance with RoHS directives and check for any process change notifications prior to finalizing procurement plans.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a fully differential 4:1 multiplexer is required for high-frequency signal routing. It serves as a pin-for-pin replacement for the MC10/100EP57DT. Consider its 100KEP logic compatibility and internal pull-down resistors for simplified interface design in PECL or ECL environments.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the ECL Pro family of high-speed timing and distribution devices. Originally developed by Micrel, which was acquired by Microchip Technology, it represents a specialized segment of logic ICs designed for precision edge timing and robust performance in demanding electronic applications.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The SY100EP57VK4G is a direct pin-for-pin, plug-in replacement for the MC100EP57DT. Designers should verify functional equivalence and electrical characteristics against legacy designs before substituting components.

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the VBB pins?

The VBB pins provide an output reference voltage approximately equal to VCC minus 1.4V. They are used to bias unused inverting inputs for single-ended applications or serve as termination points for AC-coupled differential inputs.

How are the input signals terminated?

The signal-path inputs include internal 75kΩ pull-down resistors. However, external termination is required for proper operation, typically using parallel or Y-termination configurations as recommended in the datasheet.