DS80PCI102 DS80PCI102 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 1 Lane PCI Express Repeater with Equalization and De-Emphasis Literature Number: SNLS344C August 4, 2011 DS80PCI102 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 1 Lane PCI Express Repeater with Equalization and De-Emphasis General Description The DS80PCI102 is a low power, 1 lane repeater with 4-stage input equalization, and output de-emphasis driver to enhance the reach of PCI express serial links in board-to-board or cable interconnects. Ideal for x1 PCI express configuration, the DS80PCI102 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, DS80PCI102 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. Notice: This document is not a full datasheet. For more information regarding this product or to order samples please contact your local National Semiconductor sales office or visit http://www.national.com/support/dir.html Features ■ Comprehensive family, proven system interoperability ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 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 adaption 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: 0.7 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: 65mW/channel Automatic receiver detect (hot-plug) Multiple configuration modes: Pins/SMBus/Direct EEPROM load Single supply voltage: 2.5V or 3.3V (selectable) Flow-thru pinout in 4mmx4mm 24-pin leadless LLP package >4kV HBM ESD rating -10 to 85°C operating temperature range Typical Application 30156990 © 2011 National Semiconductor Corporation 301569 www.national.com DS80PCI102 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 1 Lane PCI Express Repeater with Input Equalization and Output De-Emphasis PRELIMINARY DS80PCI102 Ordering Information NSID Qty Spec Package DS80PCI102SQX Tape & Reel Supplied As 4,500 Units NOPB SQA24A DS80PCI102SQ Tape & Reel Supplied As 1,000 Units NOPB SQA24A DS80PCI102SQE Tape & Reel Supplied As 250 Units NOPB SQA24A www.national.com 2 DS80PCI102 Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS80PCI102SQX (Tape and Reel 4500 units) Order Number DS80PCI102SQ (Tape and Reel 1000 units) Order Number DS80PCI102SQE (Tape and Reel 250 units) NS Package Number SQA24A (See AN-1187 for PCB Design and Assembly Recommendations) 3 www.national.com DS80PCI102 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 1 Lane PCI Express Repeater with Input Equalization and Output De-Emphasis Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH® Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise® Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagic™ www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise® Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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