PI3EQX8904ZHE

Signal Buffers, Repeaters, Splitters Overview

The PI3EQX8904 is a four-channel PCIe ReDriver designed for signal integrity optimization in high-speed serial links. It supports data rates of 2.5, 5, 6, and 8 Gbps, compliant with PCIe Gen 1/2/3 and SATA3 protocols. The device operates on a single 3.3V ±0.3V supply within an industrial temperature range of -40°C to +85°C. It features programmable linear equalization, output swing, and gain via pin strapping, I2C control, or external EEPROM loading. The component utilizes a 42-contact TQFN package (9mm x 3.5mm) with flowthrough pinout.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides programmable linear equalization, output swing, and gain to reduce inter-symbol interference across various physical mediums.
• Supports independent channel configuration for receiver equalization, output swing, and flat gain.
• Enables automatic configuration loading on power-up via external EEPROM, eliminating the need for an external microprocessor.
• Includes per-channel activity detection with selectable input termination and output termination detection on power-up.

Signal Buffers, Repeaters, Splitters Applications

• PCIe Gen 1/2/3 host and endpoint systems
• SATA3 storage interfaces
• Server backplanes and riser cards

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product brief to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with Diodes Incorporated or authorized distributors, as availability may vary by region.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring support for PCIe Gen 3 speeds up to 8Gbps with flexible configuration options. Ensure the design accommodates the 3.3V supply requirement and the 42-contact TQFN footprint. Consider the I2C or EEPROM programming method based on system complexity and the need for automated startup configurations.

Signal Buffers, Repeaters, Splitters Part Context

The PI3EQX8904 belongs to the PI3EQX series of signal integrity solutions from Diodes Incorporated. It is part of the company's portfolio focused on extending signal reach and maintaining eye diagram integrity in high-speed digital interfaces. This specific model targets the PCIe and SATA market segments requiring robust equalization capabilities.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Check for updated revisions within the PI3EQX8904 family. Consult Diodes Incorporated documentation for direct pin-compatible alternatives if the current part is discontinued or if different channel counts are required.