Power Current Model of LSI/IC Containing Equivalent Internal Impedance for EMI Analysis of Digital Circuits

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概要

• 論文の詳細を見る

• This paper investigates a device model of the power current used for an LSI/IC. The model is proposed to analyze the power bus noise in digital circuit boards. This model is defined in the frequency domain and constructed with an equivalent internal impedance and an equivalent internal current source. Accordingly, the output current of the model is affected by power bus impedance, such as the capacitance of bypass capacitors and the parasitic inductance of power bus wiring. Therefore, the model is useful for analyzing the effectiveness of bypass capacitors and power bus wiring. The structure of equivalent internal impedance for a simple logic IC, such as 74HCXX, can be represented as an RLC series circuit. These parameters are identified by applying the least square method. To demonstrate the validity of the model, an experimental study, was conducted. As a result, it was shown that the output current of the model corresponds to the measured current under a variety of power bus impedance levels within 6 dB.

• 社団法人電子情報通信学会の論文
• 2001-11-01

著者

• WADA Osami

  The Faculty of Engineering, Okayama University

• TOYOTA Yoshitaka

  The Faculty of Engineering, Okayama University

• KOGA Ryuji

  The Faculty of Engineering, Okayama University

• FUKUMOTO Yukihiro

  Matsushita Electric Industrial Co.,Ltd.

• Miyashita Takuya

  The Computer Center Okayama University:(present Addaress)fujitsu Ltd.

• Koga R

  Graduate School Of Natural Science And Technology Okayama University

• TOYOTA Yoshitaka

  Graduate School of Natural Science and Technology, Okayama University

• Wada O

  Graduate School Of Engineering Kyoto University

• Takahata Yasuo

  Nec Informatec Systems Ltd.

• FUKUMOTO Yukihiro

  Multimedia Development Center, Matsushita Electric Industrial Co., Ltd.

• TAKAHATA Yasuo

  the Faculty of Engineering, Okayama University

• Miyashita Takahiro

  Faculty Of Engineering Okayama University

• Miyashita T

  Graduate School Of Engineering Kyoto University

• Fukumoto Yukihiro

  Matsushita Electric Industrial Co. Ltd.

関連論文

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