SY89547LMG

Overview

The SY89547LMG is a Precision Edge® differential multiplexer manufactured by Microchip Technology. It selects among four differential inputs and provides two copies of the selected input via LVDS outputs. The device supports data rates up to 3.2 Gbps with propagation delays under 620 ps. It operates on a single 3.3V supply within an industrial temperature range of -40°C to +85°C. The component is housed in a 32-pin MLF package measuring 5mm x 5mm.

Feature Summary

• Provides internal termination for AC- or DC-coupled LVDS, LVPECL, and CML inputs
• Features ultra-low jitter design with minimal crosstalk-induced noise
• Generates two identical output copies from the selected input signal

Applications

• SONET/SDH multi-channel select applications
• Fibre Channel applications
• GigE applications

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, such as tube or tape and reel. Confirm the lead finish specification aligns with assembly requirements. Ensure the part number corresponds to the correct package variant and operating temperature range before finalizing procurement orders.

Selection Notes

Select this component when dual differential outputs are required from a four-input selection process. Consider alternative models like the SY89545L if only a single differential output is needed. Verify compatibility with the system's logic standards and coupling methods to utilize the internal termination features effectively.

Part Context

This device belongs to the Precision Edge® family of high-speed logic components originally developed by Micrel, Inc., now produced by Microchip Technology. The product line focuses on low-jitter signal routing and distribution solutions for demanding communication and networking infrastructure applications.

Replacement Considerations

SY89545LMG

FAQ

How does the device handle different logic standards?

The unique input termination design allows the device to interface with AC- or DC-coupled signals including LVDS, LVPECL, and CML without requiring external resistor-bias networks.

What is the function of the VT pins?

The VT pins provide a center-tap to the internal termination network for each differential input pair, allowing access to the termination network for maximum interface flexibility.