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LVDS应用与资料手册
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INTRODUCTION High-speed transmission of binary data has converged to a general class of low-voltage differential signaling (LVDS) that presents unique challenges to the designer. This handbook is a compilation of application notes for data transmission above 30 Mbps using an LVDS electrical layer. What is LVDS? Where should it be used? What are its benefits? What are its limitations? Answers to these and other questions are the subject of this document. This guide examines the details of low-voltage differential signaling (LVDS) and provides applications information to help designers use these devices. This document looks at TI’s broad selection of discrete LVDS devices ranging from single-channel drivers and receivers to serialization devices that significantly reduce the cabling, connector, and component costs required for today’s interface solutions. However, before exploring the details of LVDS, step back first and look at data transmission in general, and see where LVDS fits in. Transmitting data from one location to another, whether it takes place between integrated circuits on a printed-circuit board, or between networked computers located halfway around the world, has resulted in the development of numerous transmission technologies. These include electrical, optical, and wireless interfacing solutions. Over the past three decades, Texas Instruments has combined its expertise in high-speed digital and analog technologies to provide leading-edge solutions to meet the demands of today’s data transmission needs. TI is constantly pushing the capabilities and extending the performance parameters of practically every electrical data-transmission standard. Chapter 1 presents the basics of data transmission. Chapter 2 provides a mapping of system-level requirements to line-circuit features and characteristics; this becomes a basis for product selection in Chapter 4. To stimulate some design ideas, some application examples are provided in Chapter 3. Chapter 4 presents the product selection. Specifications are provided in Chapter 5 and Chapter 6 offer design guidelines and tools for obtaining optimum performance with the chosen line circuit. Finally, Chapter 7 presents common testing techniques used to verify or troubleshoot the design. [ Last edited by sdlj8051 on 2007-2-10 at 09:37 ] |
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