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Proceedings ArticleDOI

Power Delivery System: Sufficiency, Efficiency, and Stability

Zhen Mu1
17 Mar 2008-pp 465-469
TL;DR: In this paper, the authors define the three important aspects of power integrity (PI), sufficiency, efficiency, and stability, and present how the power delivery system (PDS) can be designed, modeled, analyzed, and verified in a CAD environment.
Abstract: This paper defines the three important aspects of power integrity (PI), sufficiency, efficiency, and stability; and presents how the power delivery system (PDS) can be designed, modeled, analyzed, and verified in a CAD environment.
Citations
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Journal Article

133 citations

Journal ArticleDOI
TL;DR: The primary focus of this paper is to discuss the modeling of jitter caused by power supply noise (PSN), named power supply induced jitter (PSIJ).
Abstract: The primary focus of this paper is to discuss the modeling of jitter caused by power supply noise (PSN), named power supply induced jitter (PSIJ). A holistic discussion is presented from the basics of power delivery networks to PSN and eventually to the modeling of PSIJ. The in-depth details and a review of several methodologies available in the literature for the estimation of PSIJ are presented.

45 citations

Proceedings Article
01 Jan 1999
TL;DR: The impedance versus frequency profiles of the power distribution system components including the voltage regulator module, bulk decoupling capacitors and high frequency ceramic capacitors are defined and reduced to simulation program with integrated circuit emphasis (SPICE) models.
Abstract: Power systems for modern complementary metal-oxide-semiconductor (CMOS) technology are becoming harder to design. One design methodology is to identify a target impedance to be met across a broad frequency range and specify components to meet that impedance. The impedance versus frequency profiles of the power distribution system components including the voltage regulator module, bulk decoupling capacitors and high frequency ceramic capacitors are defined and reduced to simulation program with integrated circuit emphasis (SPICE) models. A sufficient number of capacitors are placed in parallel to meet the target impedance. Ceramic capacitor equivalent series resistance (ESR) and ESL are extremely important parameters in determining how many capacitors are required. SPICE models are then analyzed in the time domain to find the response to load transients.

24 citations

Journal ArticleDOI
TL;DR: In this paper, the authors focus on damping cavity mode effects in power delivery networks by the particle swarm optimization technique and find the optimal capacitors and their locations on the board using the presented methodology.
Abstract: The Power Integrity problem for high speed systems is discussed in context of selection and placement of decoupling capacitors. Power Integrity is maintained by damping the cavity mode peaks at resonant frequencies using decoupling capacitors. This article focuses on damping cavity mode effects in power delivery networks by the particle swarm optimization technique. The s-parameter data of power plane geometry and capacitors are used for the accurate analysis including bulk capacitors and VRM, for a real world problem. The optimal capacitors and their locations on the board are found using the presented methodology, which can be used for similar power delivery networks in high speed systems.

18 citations

Journal ArticleDOI
TL;DR: System-level signal integrity (SI) and power integrity (PI) problems are taken into account and common problems of simulations-passivity violation, stability, causality, and interoperability are discussed.
Abstract: System-level signal integrity (SI) and power integrity (PI) problems are taken into account. System-level simulation of high-speed systems with effect of external environment is described. SI and PI issues with complete analysis of package, board, termination, squid card, and decoupling network are shown. Common problems of simulations-passivity violation, stability, causality, and interoperability, are also discussed.

8 citations

References
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Journal ArticleDOI
TL;DR: In this paper, the impedance versus frequency profiles of the power distribution system components including the voltage regulator module, bulk decoupling capacitors and high frequency ceramic capacitors are defined and reduced to simulation program with integrated circuit emphasis (SPICE) models.
Abstract: Power systems for modern complementary metal-oxide-semiconductor (CMOS) technology are becoming harder to design. One design methodology is to identify a target impedance to be met across a broad frequency range and specify components to meet that impedance. The impedance versus frequency profiles of the power distribution system components including the voltage regulator module, bulk decoupling capacitors and high frequency ceramic capacitors are defined and reduced to simulation program with integrated circuit emphasis (SPICE) models. A sufficient number of capacitors are placed in parallel to meet the target impedance. Ceramic capacitor equivalent series resistance (ESR) and ESL are extremely important parameters in determining how many capacitors are required. SPICE models are then analyzed in the time domain to find the response to load transients.

468 citations

Journal Article

133 citations