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DVI数据传输模块的设计
摘要：DVI即数字视频接口具有传输速度快、抗干扰能力强、传输质量高、信号传输距离长的特点。DVI接口正在逐渐替代模拟视频传输接口，成为视频传输接口的主流。基于DVI接口的数据传输模块硬件开销小，稳定性好，支持很高的数据传输率。本论文首先介绍了DVI协议，在了解DVI协议的基础上，提出了总体设计方案：用SII169芯片搭建视频接收系统；用THS8200芯片加CRT显示器搭建监测平台。接下来介绍了相关芯片和设计中用到的软件，最后介绍了整个电路设计，并完成了PCB的制作和系统的调试。其中，论文对电路设计和PCB设计进行了详细的描述。由于电路工作频率高,在设计时需要注意到高频信号的干扰，论文中列举了几种高频电路中可能出现的干扰情况，并就如何在设计中避免这些干扰提出了解决方法。本论文主要获得了以下成果：对DVI协议进行分析，并提出设计方案；对DVI数据接收模块和监测模块进行了设计和调试；实现对DVI数据的接收和监测。
关键字：数字视频接口；SII169；PCB
Abstract：DVI (Digital Visual Interface) has the following excellence: fast transmitted speed, great capability of decreasing the disturbance, good transmitted quality, long transmitted distance. DVI is taking the place of the analog video interface gradually, and becomes the mainstream of the video interface. data transmission module based on DVI has the following feature: small spending on hardware, good stability, and supporting high data transmission ratio. In the first place, the thesis introduces the protocol of DVI, and brings forward the total scheme: using SII169 to establish receiving system, and using THS8200 to establish testing system. And then the thesis introduces the chip and software used in the design. In the end, the thesis describes the whole design of the circuit and completes the PCB and the system debugging. Thereinto, the thesis describes the design of circuit and PCB design detailedly. The thesis enumerates some instances of disturbance in the high-speed circuit, and advances solution how to avoid these problems during the design. The major achievements in the thesis are given bellow. Firstly, the thesis analyses the protocol of DVI and bring forward the total scheme. Secondly, the thesis completes the design and the debugging of receiving and testing system. Thirdly, the thesis realizes the function of DVI data reception and monitoring.
Keyword: DVI, SII169, PCB
