Abstract
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 IG, 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 6dB.
| Original language | English |
|---|---|
| Pages (from-to) | 3041-3049 |
| Number of pages | 9 |
| Journal | IEICE Transactions on Communications |
| Volume | E84-B |
| Issue number | 11 |
| Publication status | Published - Nov 2001 |
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Keywords
- EMI
- High-frequency current
- LSI/IC
- Power bus noise
- Simulation model
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
Cite this
Power current model of LSI/IC containing equivalent internal impedance for EMI analysis of digital circuits. / Fukumoto, Yukihiro; Takahata, Yasuo; Wada, Osami; Toyota, Yoshitaka; Miyashita, Takuya; Koga, Ryuji.
In: IEICE Transactions on Communications, Vol. E84-B, No. 11, 11.2001, p. 3041-3049.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Power current model of LSI/IC containing equivalent internal impedance for EMI analysis of digital circuits
AU - Fukumoto, Yukihiro
AU - Takahata, Yasuo
AU - Wada, Osami
AU - Toyota, Yoshitaka
AU - Miyashita, Takuya
AU - Koga, Ryuji
PY - 2001/11
Y1 - 2001/11
N2 - 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 IG, 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 6dB.
AB - 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 IG, 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 6dB.
KW - EMI
KW - High-frequency current
KW - LSI/IC
KW - Power bus noise
KW - Simulation model
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UR - http://www.scopus.com/inward/citedby.url?scp=0035517262&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035517262
VL - E84-B
SP - 3041
EP - 3049
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 11
ER -