Decoupling Capacitor Layout Design Guidelines for Acoustic Noise Consideration in Power Distribution Network
Acoustic noise induced by multilayer ceramic capacitors (MLCCs) in power distribution network (PDN) is a critical issue regarding product user experience. In this work, design guidelines for decoupling capacitor selection, layout geometries are proposed targeting the acoustic noise, through analysis of the acoustic noise generation mechanism in printed circuit board (PCB). A test board is designed to validate the proposed design guidelines. With sound pressure level measurement of the test vehicle, the effectiveness of the proposed design guidelines is confirmed. In general, the decoupling capacitor layout design guidelines for acoustic noise consideration are consistent with the requirements for PDN to achieve high electrical performance.
Y. Sun et al., "Decoupling Capacitor Layout Design Guidelines for Acoustic Noise Consideration in Power Distribution Network," Proceedings of the 2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, pp. 357-362, Institute of Electrical and Electronics Engineers (IEEE), Sep 2020.
The definitive version is available at https://doi.org/10.1109/EMCSI38923.2020.9191476
2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity, EMCSI 2020 (2020: Jul. 27-31, Virtual)
Electrical and Computer Engineering
Keywords and Phrases
Acoustic Noise; Decoupling Capacitors; Layout; Power Distribution Network; Printed Circuit Board; Vibration
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2020 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
10 Sep 2020