| 高清晰度数字视频SDI卡的设计 |
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| 引用本文： | 李鸿强,苗长云.高清晰度数字视频SDI卡的设计[J].电子器件,2007,30(3):1014-1017,1020. |
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| 作者姓名： | 李鸿强 苗长云 |
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| 作者单位： | 天津工业大学信息与通信工程学院,天津,300160 |
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| 基金项目： | 天津市自然科学基金
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天津市教委资助项目 |
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| 摘 要： | 在研究了SDI串行数字接口工作原理的基础上,提出了一种新型的高清晰度/标准清晰度数字电视信号采集传输用的SDI卡,阐述了SDI卡中的DVI输入接口、均衡电路、串并转换电路、并串转换电路、输出驱动电路和可编程时钟电路的设计,在硬件设计基础上介绍了FPGA中IP核设计和上位机程序设计方法和流程,并总结了开发调试中需要注意的问题.高清晰度数字视频SDI卡通过实际测试,实现了DVI、HD和SD信号的输入处理和输出转换,验证了设计方案的效果.
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| 关 键 词： | 高清晰度电视 标准清晰度电视 串行数字接口 SDI DVI FPGA |
| 文章编号： | 1005-9490（2007）03-1014-04 |
| 修稿时间： | 2006-06-12 |
Design of High Definition Digital Video SDI Card |
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| LI Hong-qiang,MIAO Chang-yun.Design of High Definition Digital Video SDI Card[J].Journal of Electron Devices,2007,30(3):1014-1017,1020. |
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| Authors: | LI Hong-qiang MIAO Chang-yun |
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| Institution: | School of Information and Communication Engineering, Tianjin Polytechnic University, Tianjin 300160, China |
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| Abstract: | On the basis of SDI serial digital interface operation principle, we propose the newly developed high definition/standard definition digital video SDI card. Details are given of the DVI input interface, adaptive cable equalizer circuit, dual-rate deserializer circuit, multi-rate serializer circuit, multi-rate dual slew-rate cable driver circuit and programmable clock circuit. We also present the design methodology and flow of IP cores and PC software. The problems that can arise in the design are discussed. High definition digital video SDI card was realized and tested in real system and proved to be useful. |
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| Keywords: | high definition television standard definition televisions serial digital interfaces SDI DVI FPGA |
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