Pericom Semiconductor’s PI3EQX8904 is a PCIe, four differential channel ReDriver. The device provides programmable linear equalization, output swing, and gain, by either a pin strapping option or I²C control, to optimize performance over a variety of physical mediums by reducing inter-symbol interference.
PI3EQX8904 supports four 100 Ω differential CML data I/Os 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.
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- 2.5/5.0/8.0 Gbps serial link with linear equalizer
- Supports PCIe Gen 1/2/3 protocol
- Supports four differential channels
- Independent channel configuration of receiver equalization, output swing, and flat gain
- Per channel activity detector with selectable input termination between 50 Ω to VCC and 200 KΩ to VCC
- Per channel output termination detector on power up with selectable output termination between 50 Ω to VCC and high impedance
- Packaging: Pb-free and “green”
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- 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
- 4-bit selectable address bit for I²C
- Supply voltage: 3.3 V ±0.3 V
- Industrial temperature range: -40°C to 85°C
- 42-contact TQFN (9 mm x 3.5 mm); flow-through pinout
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