PI3EQX8904 4-channel pcie 2.5/5/8gbps redriver?with linear equalization description pericom semiconductors PI3EQX8904 is a pcie, 4 differen - tial channels redriver?. the device provides programmable linear equalization, output swing and gain, by either pin strap - ping option or i2c control, to optimize performance over a variety of physical mediums by reducing inter-symbol interfer - ence. PI3EQX8904 supports four 100-ohm differential cml data i/os and extends the signals across other distant data path - ways on the users platform. the programmable settings can be applied easily via pins, software (i 2 c) or loaded via an external eeprom. when operating in the eeprom mode, the configuration informa - tion is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver. applications ? ? personal media players ? ? mobile phones ? ? tablet features ? ? 2.5/5.0/8.0gbps serial link with linear equalizer ? ? support pcie gen 1/2/3 protocol ? ? supporting 4 differential channels ? ? independent channel configuration of receiver equalization, output swing and flat gain ? ? per channel activity detector with selectable input termination between 50 to v cc and 200k to v cc per channel output termination detector on power up with selectable output termination between 50 to v cc and high impedance ? ? very linear transfer funtion ? ? fully compliant to pcisig link training ? ? single-ended mode receiver detection for pcie ? ? input threshold detection ? ? pin strap and i 2 c master/slave selectable device programming ? ? 4-bit selectable address bit for i 2 c ? ? supply voltage: 3.3v0.3v ? ? industrial temperature range: -40 oc to 85 oc ? ? packaging (pb-free & green): ? ? 42-contact tqfn (9mm x3.5mm) - flowthrough pinout eye diagram host channel loss pericom redriver device end point equalizer, de-emphasis, swing, and amplifier gain long input trace, cable, or connectors + - + - + - output trace + - + - + - + - input trace + - long output trace, cable, or connectors before channel loss before redriver after redriver tx tx rx rx product databrief www.pericom.com | 1-408-232-9100 new product brief
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