Diodes Incorporated
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PI3EQX8908A1 (Obsolete)

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The PI3EQX8908A1 is a PCIe, 8 differential channels  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 PI3EQX8908A1 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 or software (I²C).

The PI3EQX8908A1 offers fully Linear Transfer function to fully comply with all PCIe 3 Link Training signals.


  • 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 equal-
    ization, 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 slave selectable device programming
  • 4-bit selectable address bit for I²C
  • Supply Voltage: 3.3V±0.3V
  • Industrial Temperature Range: -40°C to 85°C

Product Specifications

Product Parameters

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

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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-2426 2019-08-06 2020-02-06 Device End of Life (EOL)
PCN-2328 2018-04-12 2018-10-12 Device End of Life for tray packaging only


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