PI3EQX8984ZLEX

Signal Buffers, Repeaters, Splitters Overview

The PI3EQX8984ZLEX is an eight-channel PCI Express ReDriver manufactured by Diodes Incorporated, supporting serial link speeds of 2.5Gbps, 5.0Gbps, and 8.0Gbps for PCIe Gen1/2/3 protocols. It features a 72-contact TQFN package with dimensions of 11mm x 5mm and a 0.5mm pitch. The device provides per-channel programmable equalization up to 32.6 dB, transmit de-emphasis up to 9 dB, output swing up to 1200 mVp-p, and amplifier gain. It operates on a 3.3V ±10% supply voltage and includes pin strap and I2C master/slave programming capabilities.

Signal Buffers, Repeaters, Splitters Feature Summary

• Supports 8 differential channels in a flow-through pin-out configuration
• Provides independent per-channel configuration for receiver equalization, output swing, de-emphasis, and amplifier gain
• Features per-channel activity detector with selectable input termination and output termination detect on power-up
• Includes Hot Plug Detect functionality allowing host reset if an endpoint is removed

Signal Buffers, Repeaters, Splitters Applications

• PCI Express Gen1/2/3 systems requiring signal integrity extension
• Platforms utilizing lossy copper cables exceeding 10 meters
• Backplane designs over 40 inches with multiple connectors

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix ZLEX against official Diodes Incorporated documentation to confirm exact packaging and tape-and-reel specifications. Ensure compatibility with the 72-pin TQFN footprint and confirm that the component meets RoHS and Green manufacturing standards as defined in the product brief.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the PI3EQX8984ZLEX when an eight-channel solution with a 72-pin form factor is required, specifically noting its backward compatibility with the PI2EQX8864A pinout. Consider this device for applications needing programmable linear equalization and de-emphasis to mitigate inter-symbol interference in high-speed serial links.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the PI3EQX8908/8984 family from Pericom Semiconductor, now part of Diodes Incorporated. While the PI3EQX8908 utilizes a 54-pin package, the PI3EQX8984 variant specifically employs a 72-pin TQFN package to accommodate four bi-directional lanes alongside the standard eight-channel flow-through architecture.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The datasheet notes backward compatibility with the PI2EQX8864A pinout. Designers replacing legacy components should verify electrical parameter alignment and ensure the target system supports the required 3.3V supply and I2C or EEPROM configuration methods.