PI3EQX5801 5.0gbps, 1-lane, pcie 2.0 redriver? with i 2 c programming interface pericom semiconductors PI3EQX5801 is a low power, high performance 5.0 gbps signal redriver? designed speci- fically for the pcie 2.0 protocol. the device provides program - mable equalization, de-emphasis, and output swing controls to optimize performance over a variety of physical mediums by reducing inter-symbol interference. PI3EQX5801 supports two 100? differential cml data i/os between the protocol asic to a switch fabric, over cable, or to extend the signals across other distant data pathways on the users platform. the integrated equalization circuitry provides flexibility with signal integrity of the signal before the redriver. a low- level input signal detection and output squelch function is provided for each channel. when the channels are enabled, en# = 0, and operat - ing, that channels input signal level (on xi+/-) determines whether the output is active. if the input signal level of the channel falls below the active threshold level (vth-) then the outputs are driven to the common mode voltage. in addition to signal conditioning, when en# = 1, the device enters a low power standby mode. the PI3EQX5801 also includes a fully programmable i 2 c interface. when i2c control mode is enabled, i 2 c_en = 1, equal - ization, output swing, and de-emphasis settings can be adjusted by programming the related registers. block diagram application diagram pc monitor notebook docking station gbe controller gbe port notebook docking chipset pericom PI3EQX5801 pcie 2.0 redriver pericom PI3EQX5801 pcie 2.0 redriver tm tm features ? ? pcie 2.0 compatible ? ? two 5.0gbps differential signal pairs ? ? adjustable receiver equalization ? ? 100? differential cml i/os ? ? pin configured output emphasis and output swing control ? ? input signal level detect and squelch for each channel ? ? automatic receiver detect ? ? low power : ~330mw (3.3v)/~150mw (1.5v) ? ? industrial temp support -40c~ +85c ? ? stand-by mode C power down state ? ? two power options: 3.3v or 1.5v ? ? packaging: 20-pin tqfn (4x4mm) rxp cml cm l limiting a mp e qualizer s ignal detection p ower management - repeated 2 times - rxn txp txn eq_x product databrief new product brief www.pericom.com | 1-408-232-9100
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