單根蛇形延遲線繞行方式對高速數位電路的訊號影響

本文主要研究單根蛇形延遲線應用在高速數位電路板上不同繞線方式對訊號完整度的影響。本文將針對幾個實際應用的例子，模擬其結構並針對不同的結構圖中主要的信號雜訊來源進行分析，其主要雜訊來源是傳輸線間的串音雜訊干擾，經由建立結構圖後再利用不同的參數變化及繞行走線方式量測幾個重要的參數進行分析比較，參數例如時域穿透波形TDT、時域反射波形TDR及眼圖…..等等的模擬結果分析取得有效的資訊。經由實驗應用到數位電路板上進行實體量測，最後利用模擬後的結果與實體實驗的結果來確認模擬與理論的驗證差異。

關鍵字

TDT時域穿透波形、TDR時域反射波形、串音干擾、單根蛇形延遲線、眼圖

並列摘要

This article is about the study of different wiring methods’ signal effectiveness of serpentine delay line’s application on the high-speed digital circuits. This study based on the analysis of primary signals simulated in several structural differences in different diagrams of actual applications. The main source of statics is crosstalk between transmission lines. After establish diagram and than obtain effective data by comparing measurements of major factors such as time domain reflectometry (TDR) and time domain transmission (TDT), and Eye Diagram. Through applying the experimental analysis to high-speed digital circuits and finally field tested to confirm variations between simulations and the actual field test.

並列關鍵字

TDT ； Eye diagram ； Time Domain Transmission ； Crosstalk ； Time Domain Reflection ； TDR

參考文獻

[14] Fang-Li Chao “Analysis of Laddering Wave in Double Layer Serpentine Delay Line ”International Journal of Applied Science and Engineering 2008.6, 1:47-52

[4] X. Wu, C. Morrison, B. Patel, R. N. Chakravarthi, and P. Amleshi, "SI and EMI impact of AC coupling Cap. On 25Gbps+ systems," Designcon 2013

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[6] W. Fan, A.C.W. Lu, L.L. Wai and B.K. Lok, "Mixed-mode S-parameter characterization of differential structures," TR/04/011/JT

國際替代計量

單根蛇形延遲線繞行方式對高速數位電路的訊號影響

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