PI3EQX5801ZDEX

Signal Buffers, Repeaters, Splitters Overview

The PI3EQX5801ZDEX is a single-lane PCIe 1.0/2.0 ReDriver manufactured by Diodes Incorporated, designed to optimize signal integrity over various physical mediums. It supports data rates of 2.5 Gbps and 5.0 Gbps with two 100Ω differential CML I/O pairs. The device operates on either 3.3V or 1.5V power supplies, consuming approximately 330mW at 3.3V and 150mW at 1.5V. It features adjustable receiver equalization, pin-configured output emphasis and swing control, and input signal level detection with squelch functionality. The component is housed in a 20-pin TQFN (4x4mm) package and supports an industrial temperature range from -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Supports PCIe 1.0 and 2.0 protocols with programmable equalization and de-emphasis to reduce inter-symbol interference.
• Includes low-level input signal detection and output squelch functions for each channel to manage signal activity.
• Features a fully programmable I2C interface for adjusting equalization, output swing, and de-emphasis settings via registers.
• Provides flexible power options with distinct standby mode capabilities for reduced power consumption.

Signal Buffers, Repeaters, Splitters Applications

• Blade Server systems requiring PCIe 2.0 signal extension
• PCIe 2.0 cable connections between protocol ASICs and switch fabrics
• Extending signals across distant data pathways on user platforms

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix ZDEX against the manufacturer's official documentation to confirm packaging details such as reel quantity and tape specifications. Ensure that the selected voltage configuration matches the system requirements, as the device supports both 1.5V and 3.3V operation. Confirm compliance with RoHS directives and check for any recent product change notifications that may affect lead times or material composition before finalizing procurement orders.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing for PCIe 1.0 or 2.0 interfaces requiring signal regeneration over cables or extended PCB traces. Consider the 20-pin TQFN package size for space-constrained layouts. Evaluate the power supply availability in the target design, as the device offers distinct power profiles for 1.5V and 3.3V operations. Verify that the required equalization and de-emphasis adjustments can be handled via the available pin-configured or I2C programming methods based on system complexity.

Signal Buffers, Repeaters, Splitters Part Context

The PI3EQX5801 belongs to Diodes Incorporated's PI3EQX series of high-performance signal Redrivers. This family focuses on maintaining signal integrity for high-speed serial interfaces like PCIe. The ZDEX suffix typically denotes a specific tape-and-reel packaging variant intended for automated surface-mount assembly, distinguishing it from sample or cut-tape versions.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult Diodes Incorporated directly for qualified alternatives or cross-reference with other single-lane PCIe 2.0 Redrivers ensuring compatible I/O standards and package dimensions.