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PI3EQX8908A2

3.3V, 2.5/5/8Gbps 4 Port/8 channel LINEAR PCIe ReDriver with Pin Strap and I2C control, flowthough pinout

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Description

Diodes Incorporated's PI3EQX8908A2 is a PCIe, 8 differential channel ReDriver. The device provides programmable linear equalization, output swing and gain, by either pin strapping option or I²C Control, to optimize performance over a variety of physical mediums by reducing Inter-symbol interference.

The PI3EQX8908A2 supports eight 100-Ohm Differential CML data I/O’s and extends the signals across other distant data pathways on the user’s platform.

The programmable settings can be applied easily via pins, software (I²C) or loaded via an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.

The PI3EQX8908A2 offers fully Linear Transfer function to fully comply with all PCIe 3 Link Training signals.

Feature(s)

2.5/5.0/8.0Gbps serial link with linear equalizer
Support PCIe Gen 1/2/3 protocol
Supporting 8 differential channels
Independent channel configuration of receiver equalization, output swing and flat gain
Per Channel Activity Detector with selectable input termination between 50Ω to VDD and 200KΩ to VDD Per Channel Output Termination Detector on power up with selectable output termination between 50Ω to VDD
and High impedance
Very linear transfer function
Fully compliant to PCISIG Link Training
Single-ended mode receiver detection for PCIe
Input Threshold detection
Pin strap and I²C master/slave selectable device programming with external EEPROM
4-bit selectable address bit for I²C
Supply Voltage: 3.3V±0.3V
Industrial Temperature Range: -40°C to 85°C
Packaging (Pb-free & Green):
- 54-contact TQFN

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Standard
Channels	8
Data Rate (Gbps)	2.5, 5, 8
Lanes/Ports	4
Output Swing Max (mV)	1200
Programming Interface(s)	I2C, Pinstrap

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

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Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products