2.5 Gbps / 5.0 Gbps / 8.0 Gbps 8 Channel PCI Express Repeater with Equalization and De-Emphasis General Description The DS80PCI800 is a low power, 8 channel repeater with 4stage input equalization, and output de-emphasis driver to enhance the reach of PCI express serial links in board-toboard or cable interconnects. Ideal for higher density x8 and x16 PCI express configurations, the DS80PCI800 automatically detects and adapts to Gen-1, Gen-2 and Gen-3 data rates for easy system upgrade. Each channel supports seamless detection and management of the new Gen-3 transmit equalizer coefficients (FIR tap) handshake protocol and PCIe control signals such as transmit idle, beacon etc. without external system intervention. An automatic receive detection circuitry controls the input termination impedance based upon endpoint insertion (hot-plug events). These features guarantee PCIe interoperability at both the electrical and system level, while reducing design complexity. Powered by National's SiGe BiCMOS process, DS80PCI800 offers programmable transmit de-emphasis (up to 12 dB), transmit VOD (up to 1300 mVp-p) and receive equalization (up to 36 dB) to enable longer distance transmission in lossy copper cables (10m+), or backplanes (40"+) with multiple connectors. The receiver is capable of opening an input eye that is completely closed due to inter-symbol interference (ISI) introduced by the interconnect medium. The programmable settings can be applied easily via pins, software (SMBus/I2C) or loaded via an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver. With a low power consumption and control to turn-off unused channels, the DS80PCI800 is part of PowerWise family of energy efficient devices. Notice: This document is not a full datasheet. For more information regarding this product or to order samples please contact your local Texas Instruments sales office or visit http://www.ti.com Features Comprehensive family, proven system inter-operability DS80PCI102 : x1 PCIe Gen-1/2/3 DS80PCI402 : x4 PCIe Gen-1/2/3 DS80PCI800 : x8/x16 PCIe Gen-1/2/3 Automatic rate detect and adaptation to Gen-1/2/3 speeds Seamless support for Gen-3 transmit FIR handshake Rate adaptive receive EQ (up to 36 dB), transmit deemphasis (up to 12 dB) only Gen-1/2 Adjustable Transmit VOD: 0.8 to 1.3 Vp-p (pin mode) 0.2 UI of residual deterministic jitter at 8 Gbps after 40" of FR4 or 10m 30awg PCIe Cable Low power dissipation with ability to turnoff unused channels: 65 mW/channel Automatic receiver detect (hot-plug) Multiple configuration modes: Pins/SMbus/DirectEEPROM load Flow-thru pinout: 54-pin LLP (10 mm x 5.5 mm, 0.5 mm pitch) Single supply voltage: 2.5V or 3.3V (selectable) 3 kV HBM ESD rating -40 to 85C operating temperature range Typical Application 30133380 (c) 2012 Texas Instruments Incorporated 301333 SNLS334D www.ti.com DS80PCI800 PRODUCT BRIEF 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 8 Channel PCI Express Repeater with Equalization and De-Emphasis January 24, 2012 DS80PCI800 PRODUCT BRIEF DS80PCI800 Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS80PCI800SQ (Tape and Reel 2,000 units) Order Number DS80PCI800SQE (Tape and Reel 250 units) Package Number SQA54A www.ti.com 2 DS80PCI800 Notes 3 www.ti.com DS80PCI800 PRODUCT BRIEF 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 8 Channel PCI Express Repeater with Equalization and De-Emphasis Notes www.ti.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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