PI3EQX8908AZFEX

A product Line of Diodes Incorporated PRODUCT BRIEF PI3EQX8908A 2.5Gbps/5.0Gbps/8.0Gbps 8-channel PCI Express ReDriver with Linear Equalization Features Description ÎÎ2.5/5.0/8.0Gbps serial link with linear equalizer The PI3EQX8908A is a PCIe, 8 differential channels ReDriv- ÎÎSupport PCIe Gen 1/2/3 protocol er™. The device provides programmable linear equalization, ÎÎSupporting 8 differential channels output swing and gain, by either pin strapping option or I2C Con- ÎÎIndependent channel configuration of receiver equalization, output swing and flat gain trol, to optimize performance over a variety of physical mediums by reducing Inter-symbol interference. ÎÎPer Channel Activity Detector with selectable input termination between 50Ω to VDD and 200KΩ to VDD The PI3EQX8908A supports eight 100-Ohm Differential CML data I/O’s and extends the signals across other distant data ÎÎ Per Channel Output Termination Detector on power up with selectable output termination between 50Ω to VDD and High impedance pathways on the user’s platform. ÎÎVery linear transfer function The programmable settings can be applied easily via pins, software (I C) or loaded via an external EEPROM. When operating ÎÎFully compliant to PCISIG Link Training in the EEPROM mode, the configuration information is automati- ÎÎSingle-ended mode receiver detection for PCIe cally loaded on power up, which eliminates the need for an ex- ÎÎInput Threshold detection ternal microprocessor or software driver. ÎÎPin strap and I2C master/slave selectable device programming with external EEPROM 2 The PI3EQX8908A offers fully Linear Transfer function to fully ÎÎ4-bit selectable address bit for I2C comply with all PCIe 3 Link Training signals. ÎÎSupply Voltage: 3.3V±0.3V ÎÎIndustrial Temperature Range: -40oC to 85oC ÎÎPackaging (Pb-free & Green): àà 54-contact TQFN (10mm x 5.5mm x 0.5mm pitch) - flowthrough pinout Eye Diagram Before Channel Loss Before ReDriver After ReDriver Pericom ReDriver Host Channel Loss TX + RX + - Long input trace, cable, or connectors Long output trace, cable, or connectors Device Equalizer, De-emphasis, Swing, and Amplifier Gain End Point + + - - + + - - diodes.com | 1-408-232-9100 Output trace Input trace + RX + TX -