PI3EQX8904ZHEX

A product Line of Diodes Incorporated PRODUCT BRIEF PI3EQX8904 4-channel PCIe 2.5/5/6/8Gbps ReDriver with Linear Equalization, PCIe3/SATA3 Features Description ÎÎSupport PCIe Gen 1/2/3 protocol, SATA3 Supporting 4 The PI3EQX8904 is a 4 differential channel ReDriver. The de- differential channels vice provides programmable linear equalization, output swing ÎÎIndependent channel configuration of receiver and gain, by either pin strapping option or I2C Control, to opti- equalization, output swing and flat gain mize performance over a variety of physical mediums by reducing ÎÎPer Channel Activity Detector with selectable input Inter-symbol interference. termination between 50Ω to VCC and 200KΩ to VCC The PI3EQX8904 supports four 100-Ohm Differential CML data ÎÎPer Channel Output Termination Detector on power up I/O’s and extends the signals across other distant data pathways with selectable output termination between 50Ω to VCC and High impedance on the user’s platform. ÎÎVery linear transfer funtion The programmable settings can be applied easily via pins, soft- ÎÎFully compliant to PCISIG Link Training ware (I2C) or loaded via an external EEPROM. When operating 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 ÎÎ4-bit selectable address bit for I2C ÎÎSupply Voltage: 3.3V±0.3V ÎÎIndustrial Temperature Range: -40oC to 85oC ÎÎPackaging (Pb-free & Green): àà 42-contact TQFN (9mm x3.5mm) - 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 -