| 4G视频传输模块的硬件设计与信号完整性分析 |
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| 引用本文： | 黄学达,付仕明.4G视频传输模块的硬件设计与信号完整性分析[J].电视技术,2015,39(20):14-17. |
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| 作者姓名： | 黄学达 付仕明 |
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| 作者单位： | 重庆邮电大学,重庆第二师范学院 |
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| 基金项目： | TD-LTE-Advanced 终端基带芯片开发 |
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| 摘 要： | 提出一种基于TMS320DM6467T平台的嵌入式4G视频传输模块的硬件方案,该方案充分利用4G网络的高带宽,可以实现视频信号的快速传输。对方案的硬件设计进行了深入的探讨,分析了各个功能模块。介绍信号完整性分析的重要性,提出4G视频传输模块的信号完整性设计方案。应用HSPICE软件和IBIS模型对硬件电路板进行仿真分析,有效地解决了系统的LPDDR2接口电路中出现的反射、串扰等信号完整性(SI)方面的问题,提高了信号眼图质量,充分保证了电路板设计的质量和信号传输速度,满足视频信号传输的要求。
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| 关 键 词： | 第4代移动通信 视频传输 LPDDR2 信号完整性 |
| 收稿时间： | 2015/6/24 0:00:00 |
| 修稿时间： | 7/9/2015 12:00:00 AM |
Hardware design and signal integrity similationof 4G video transmission module |
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| Huang Xue-da and fushiming.Hardware design and signal integrity similationof 4G video transmission module[J].Tv Engineering,2015,39(20):14-17. |
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| Authors: | Huang Xue-da and fushiming |
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| Affiliation: | 1.Chongqing University of Posts and Telecommunications,,chongqing university of education |
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| Abstract: | A hardware solution of 4G video transmission module based on TMS320DM6467T platform was proposed, which took full advantage of the high-bandwidth of 4G network and could realize video signal transmission fastly. The hardware design was discussed in depth and various functional modules were designed. Importance of Signal Integrity(SI) was introduced, and design scheme of SI was proposed. The simulation analysis of hardware circuit board was made by use HSPICE software and IBIS models. The SI problems, which usually appeared in LPDDR2 interface circuit such as reflection and crosstalk, were resolved effectively, and eye pattern quality was increased. Then the quality of circuit board and speed of signal transmission were fully guaranteed, which was satisfied for requirement of video transmission. |
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| Keywords: | 4G video transmission Low Power DDR2 Signal Integrity |
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