SCAN90004TVS

Signal Buffers, Repeaters, Splitters Overview

The SCAN90004TVS is a four-channel LVDS buffer and repeater manufactured by Texas Instruments. It supports a maximum data rate of 1.5 Gbps per channel with configurable pre-emphasis to mitigate ISI jitter on lossy backplanes and cables. The device features integrated 100Ω input and output termination resistors, reducing board space requirements. It accepts LVDS, CML, and LVPECL inputs and provides LVDS outputs. Operating conditions include a supply voltage range of 3.15V to 3.45V and an industrial temperature range from -40°C to +85°C. The component is housed in a 48-pin TQFP package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Configurable pre-emphasis functionality to drive lossy transmission media
• Integrated IEEE 1149.1 JTAG interface for boundary scan testing
• On-chip 100Ω differential input and output termination resistors
• Hardware power-down mode via the PWDN pin

Signal Buffers, Repeaters, Splitters Applications

• Point-to-point backplane interconnects
• Long-distance cable transmission systems
• High-speed digital signal buffering and re-driving

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm environmental compliance and packaging details. Confirm that the intended application environment falls within the specified industrial temperature limits and supply voltage tolerances before finalizing procurement.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when IEEE 1149.6 limited testability is required alongside standard JTAG support. Consider the DS90LV004 if JTAG integration is unnecessary. Ensure the design accommodates the specific pre-emphasis control logic and power-down timing characteristics defined in the datasheet.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the SCAN90004 series of high-speed LVDS interface devices. It is designed to replace legacy buffer solutions by integrating termination and testability features directly into the package, simplifying PCB layout for high-speed serial links.

Signal Buffers, Repeaters, Splitters Replacement Considerations

DS90LV004TVS/NOPB

Signal Buffers, Repeaters, Splitters FAQ

Does the SCAN90004 support multidrop signaling?

No, the LVDS outputs are optimized for point-to-point applications and do not support multidrop (Bus LVDS) environments.

What is the function of the PEM0 and PEM1 pins?

These pins configure the pre-emphasis level for all channels, allowing selection between off, low, medium, or high settings to compensate for signal loss.

How does the device handle power-down?

Asserting the PWDN pin low activates hardware power-down mode, tri-stating the outputs and disabling internal bias circuitry while keeping JTAG logic active.