基于单片FPGA的可扩展DVI发送器  

Expandable Single-FPGA-Based DVI Transmitter

作　　者：吴晓铁[1] 俞军[1] 程君侠[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海200433

出　　处：《半导体技术》2007年第12期1060-1064,共5页Semiconductor Technology

基　　金：电子信息产业发展基金资助项目(财建[2007]215号;信部运[2007]292号)

摘　　要：介绍了当前主流的DVI数字视频协议,特别分析了TMDS的链路结构、信号特性和编码算法。针对目前DVI设计中的不足,给出了一个符合DVI1.0规范的基于单片FPGA的可扩展视频发送器的实现方法,具备某些传统方案无法完成的特性。它充分利用FPGA领域的最新技术,给出了一种基于Xilinx SPARTAN-3A DDR I/O的输出并串转换技术实现方法,克服了FPGA的最高时钟频率限制,极大地提高了运算速度和减少了对系统硬件的需求。The mainstream protocol of digital visual interface （DVI） especially in TMDS link structure, signal character and encoding algorithm were introduced. An expandable FPGA-based DVI transmitter system according to DVI 1.0 specification to overcome the shortcomings of current DVI designs was presented, its features in some respects that traditional scheme can not reach. The state-of-the-art technologies of FPGA field were adopted in the design and the realization method of an optimized serializer derived from Xilinx SPARTAN- 3A DDR I/O was presented. It overcomes the maximum clock frequency limitation, greatly improves the computation speed and reduces the system hardware requirements.

关 键 词：数字视频接口 双倍数据速率 最小变换差分信号 高清晰度多媒体接口 

分 类 号：TN79[电子电信—电路与系统]