Product Databrief PI2EQX5964 2 5.0Gbps 4-Lane PCIe 2.0 ReDriver with Equalization, Emphasis, & I C Control Pericom Semiconductors PI2EQX5964 (or 5904) is a low power, PCIe compliant signal redriver also suitable for other Features high speed serial signals such as serdes backplane and non Up to 5.0Gbps PCI Express 2.0 Serial ReDriver protocol specific protocols. The device provides programmable equalization, amplification, and de-emphasis by using 8 select Supporting 8 differential channels or 4 lanes of PCIe bits, to optimize performance over a variety of physical mediums Interface by reducing Inter-symbol interference. 2 I C configuration controls (3.3V tolerant) PI2EQX5964 supports eight 100W Differential CML data I/Os between the Protocol ASIC to a switch fabric, across a backplane, Adjustable receiver equalization and transmitter or extends the signals across other distant data pathways on de-emphasis and output levels the users platform. Increased output drive for longer trace and cable The integrated equalization circuitry provides flexibility with applications signal integrity of the PCI Express signal before the ReDriver, whereas the integrated de-emphasis circuitry provides flexibility Variable input an output termination with signal integrity of the signal after the redriver. 1:2 channel broadcast In addition to providing signal re-conditioning, Pericoms PI2EQX5964 also provides power management Stand-by mode Channel loop-back/Mux and Demux Mode operated by a Bus Enable pin. Electrical Idle fully supported Target markets for this ReDriver are networking, embedded, Receiver detect and individual output control industrial, server and storage applications, including non- protocol-specific and high-speed signal applications. 2 Fine adjustment of electrical idle threshold via I C Block Diagram Single supply voltage, 1.2V 0.05V Power down modes + Output Input level detect Industrial Temp support, -40C ~ +85C Controls to control logic + xyRx+ Packaging: 56-contact TQFN, Pb-free & Green xyTx+ + xyRx- Equalizer xyTx- Figure1 xyTx+ A + Equalizer xyRx+ + B xyTx- xyRx- Output Input level detect + to control logic Controls PCIe 2.0 Data Lane Repeats 4 Times ReDriver SELy x Mode Sy x LB Control Registers Blade Server & Logic Dy x RXD x RES x DE x Blade Server PCIe 2.0 Cable Power PD Management Figure1 SDA 2 I C Control Ax Redrivers with emphasis and equalization signal conditioning technology ensure SCL the integrity of high-frequency PCIe signals by opening closed signal eyes to recover data and meet strict compliance testing requirements. Increased signal margin also supports longer drive lenghts over even low-quality cables. www.pericom.com 1-408-435-0800 PI2EQX6874