A Study of Power Delivery Network in a GPS SiP
The Power Delivery Network (PDN) in a Global Positioning System (GPS) SiP was studied in this paper. Each of power/ground planes was replaced by a novel embedded low-pass filter for multi-level power design. The equivalent circuit model, full-wave simulation and experiment were used to analyze the low impedance performance of this novel lowpass filter. A simple equivalent circuit model of normal signal theoretically showed that impedance matching, low parasitic parameters of transition via and the continuity of return path were the main factors for signal integrity (SI). To improve the signal quality, a “coaxial like structure around one signal line was designed to shield the simultaneous switching noise in the RF chip and to protect signal energy radiation in the digital chip. The optimal insertion loss of digital and RF signal were less than -0.5dB. At last, some guidelines were summarized for mixed signal system especially high frequency and high speed system design.
Jun Li Lixi Wan Cheng Liao
Institute of Electromagnetics, Southwest Jiaotong University, Chengdu Sichuan 610031, China; Institu Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China Institute of Electromagnetics, Southwest Jiaotong University, Chengdu Sichuan 610031, China
国际会议
北京
英文
283-287
2009-08-10（万方平台首次上网日期，不代表论文的发表时间）