PI2EQX5904 5.0Gbps 4-Lane PCIe 2.0 ReDriver with Equalization & Emphasis Features Description Up to 5.0Gbps PCIe 2.0 Serial ReDriver Pericom Semiconductors PI2EQX5904 is a low power, PCIe compliant signal ReDriver. e Th device provides programmable Supporting 8 differential channels or 4 lanes of PCIe equalization, amplicfi ation, and de-emphasis by using 8 select Interface bits, to optimize performance over a variety of physical mediums Pin strapped and I2C configuration controls by reducing Inter-symbol interference. 2 (3.3V tolerant I C) PI2EQX5904 supports eight 100-Ohm Differential CML data Adjustable receiver equalization I/Os between the Protocol ASIC to a switch fabric, across a back- Adjustable transmitter amplitude and de-emphasis plane, or extends the signals across other distant data pathways on the users platform. PI2EQX5904 compensates signal inser- Variable input an output termination tion loss at designated BER issued by PCIe2.0 endpoint device. 1:2 channel broadcast e Th integrated equalization circuitry provides efl xibility with Channel loop-back/Mux and Demux Mode signal integrity of the PCIe signal before the ReDriver, whereas Low Power: 660mW, Typical the integrated de-emphasis circuitry provides efl xibility with sig- nal integrity of the signal after the ReDriver. Electrical Idle fully supported Receiver detect and individual output control In addition to providing signal re-conditioning, Pericoms PI2EQX5904 also provides power management Stand-by mode Single supply voltage, 1.2V 0.05V operated by a Power Down pin. Power down modes Industrial Temp support, -40C ~ +85C Packaging: 100-contact LBGA, Pb-free & Green Block Diagram Figure1 + Output Input level detect Controls to control logic + xyRx+ xyTx+ + xyRx- Equalizer xyTx- PCIe 2.0 ReDriver xyTx+ + A Equalizer xyRx+ + B xyTx- xyRx- Blade Server Output Input level detect + to control logic Controls Blade Server PCIe 2.0 Cable Data Lane Repeats 4 Times SELy x Mode Sy x Control Registers LB & Logic Dy x RXD x RES x DE x Power PD Management SDA 2 I C Control Ax SCL All trademarks are property of their respective owners. www.pericom.com PS-0.5 05/15/12 12-0199 1 PI3EQX6701PI3EQX7711PI2EQX5904 5.0Gbps 4-Lane PCIe 2.0 ReDriver with Equalization & Emphasis Pin Configuration (Top-Side View) 4 5 6 7 8 9 10 2 3 1 - VDD VDD B0TX- B0TX+ VDD SCL SDA VDD B0RX + B0RX A A1TX+ B A1RX+ A0TX- GN D GN D GND GND - DE A VDD A0RX - A0TX+ GND GN D A1TX PD C A1RX- GND GND A0RX+ NC VDD D VDD B1TX + B1TX- D2 A NC VDD B1RX- B1RX + VDD RXD A S1 A SIG A RX50 A S0 A E SEL0 A SEL1 A SEL2 A D0 A D1 A LB SEL1 B SEL0 B A1 SEL2 B F RX50 B SIG B S1 B RXD B S0 B - VDD VDD A2TX + A2T X G VDD - A2RX+ MODE D0 B A2RX VDD - B2RX+ A0 B3RX GN D GN D H B2TX+ GND GND - DE B B3TX B2RX- B3RX+ GN D GN D J B2TX- GND GND RESET D1 B B3TX+ VDD VDD A3TX+ K VDD A3RX+ A3RX- D2 B A4 A3TX - VDD All trademarks are property of their respective owners. www.pericom.com PS-0.5 05/15/12 12-0199 2