Full metadata record
DC FieldValueLanguage
dc.contributor.author王家龍en_US
dc.contributor.authorWang, Chia-Lungen_US
dc.contributor.author吳霖堃en_US
dc.contributor.authorWu, Lin-Kunen_US
dc.date.accessioned2014-12-12T02:39:04Z-
dc.date.available2014-12-12T02:39:04Z-
dc.date.issued2013en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT070060706en_US
dc.identifier.urihttp://hdl.handle.net/11536/73841-
dc.description.abstract本論文探討網路晶片的MAC與PHY對接時使用的RGMII Interface 分析EMI問題常用的解決對策。藉由量測clock波形及FFT後的頻譜分佈,對於125MHz clock的基頻及其於250MHz、375MHz‧‧‧等諧波頻率EMI的抑制效果進行探討,本論文亦分析不同對策。 針對125MHz的Clock使用展頻及控制slew rate兩種抑制EMI的技巧。實驗結果顯示,展頻可透過將基頻及各階諧波能量分散到較寬頻寬的作法而達到降低峰值輻射的目的,而在clock trace並聯10pF電容來降低slew rate,亦可有效的抑制125MHz及諧波的EMI。雖然這兩種技巧都可以抑制EMI,但是使用時則需滿足timing spec的規定。zh_TW
dc.description.abstractThis thesis investigates the effectiveness of two techniques commonly used to improve EMI performance of networking products RGMII Interface. By measuring clock waveform and obtaining its spectral power characteristics via FFT, the EMI suppressing effectiveness of the two techniques are compared. Spread-spectrum clocking (SSC) and slew rate control techniques are employed to suppress the EMI associated with the RGMII’s 125MHz clock signal. Experimental results indicate that SSC reduces EMI by spreading power contained in each clock harmonic over a wider bandwidth. On the other hand, reducing the slew rate by shunting the clock trace to the ground via a 10pF capacitor is also effective in suppressing clock signal’s EMI. Although both techniques can be used to suppress EMI, they have to be constrained not to causing any violation in timing specification.en_US
dc.language.isozh_TWen_US
dc.subject媒體獨立介面zh_TW
dc.subject乙太網路zh_TW
dc.subject電磁干擾zh_TW
dc.subjectMedia Independent Interfaceen_US
dc.subjectEtherneten_US
dc.subjectEMIen_US
dc.titleRGMII Interface電磁干擾解決方案分析zh_TW
dc.titleAnalysis of Electromagnetic Interference Solutionsen_US
dc.typeThesisen_US
dc.contributor.department電機學院電信學程zh_TW
Appears in Collections:Thesis


Files in This Item:

  1. 070601.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.