Jitter-Aware Economic PDN Optimization with a Genetic Algorithm
This article proposes a jitter-aware decoupling capacitors placement optimization method that uses the genetic algorithm (GA). A novel method for defining the optimization target function in regard to power delivery network (PDN) and power source-induced jitter (PSIJ) optimization based on the GA-based tool is proposed. The proposed method can provide an optimum and economic solution for the number of decoupling capacitors to use in a PDN to reach the target impedance. Then, by modifying the optimization target function with our proposed method, an optimum solution of the number of decoupling capacitors regarding the PSIJ can be obtained. The PSIJ analytical expressions are derived in conjunction with a resonant cavity model that includes the coordinates of the decoupling capacitors and the PSIJ transfer function. The GA-based optimization algorithm with the proposed target function is first applied to optimize the number of decoupling capacitors regarding the PSIJ. Finally, the measured jitters from HSPICE simulation results are used to verify our optimization method such that both the simulated results and analytically calculated results support the efficiency of our proposed optimization method.
Z. Xu et al., "Jitter-Aware Economic PDN Optimization with a Genetic Algorithm," IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 8, pp. 3715 - 3725, article no. 9461629, Institute of Electrical and Electronics Engineers (IEEE), Aug 2021.
The definitive version is available at https://doi.org/10.1109/TMTT.2021.3087188
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Decoupling Capacitor; Genetic Algorithm (GA); Jitter; Power Delivery Network (PDN); Power Integrity; Power Source-Induced Jitter (PSIJ)
International Standard Serial Number (ISSN)
Article - Journal
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01 Aug 2021