关键词: 电源分配网络, 目标阻抗, 谐振分析

Abstract: Power Integrity(PI)has become a limiting factor for the overall performance of modern chip design due to the current surges caused by SSN.Power distribution network constitutes the largest and most complex interconnection-layered architecture of the high-speed digital system,about 30%～40%,of the interconnect space.All devices in the system are connected to PDN directly or indirectly,thereby posing great pressure on the design of PDN and the analysis of power integrity.PDN design affects power integrity,signal integrity,electromagnetic integrity and other system indicators.The paper focuses on the power distribution network and target impedance method.Simulation analysis on power integrity is then performed.

Key words: power distribution network, target impedance, resonance analysis