DCON26_PAPER_Track10_BridgingtheTime-FrequencyChasminPDNDesign_206_62.pdf

1、 Bridging the Time-Frequency Chasm in PDN Design:Leveraging Cumulative Power-Rail Noise and Reverse Pulse Techniques for Spatial-Frequency Insight Kristoffer Skytte,Cadence Ethan Koether,Amazon Shirin Farrahi,Marvell Joseph Hartman,Oracle Mario Rotigni,retired mario.rotigniieee.org John Phillips,Cad

2、ence Istvan Novak,Samtec Page|1 Abstract Modern power distribution networks(PDNs)in high-performance systems face increasing complexity,especially when supporting multiple loads across shared supply rails.Traditional target impedance methods,while foundational,often fall short in capturing the spati

3、al and frequency-dependent behavior of these systems.This work introduces a novel approach that combines Cumulative Power-rail Noise(CPN)and the Reverse Pulse Technique(RPT)to bridge the gap between time-domain performance metrics and spatially distributed frequency-domain data.The result is a deepe

4、r understanding of how spatial filtering,decoupling placement,and layout decisions affect both local and system-wide power integrity.Author(s)Biography Ethan Koether is a Senior Signal Integrity and Power Integrity Engineer with Amazon Leo.Prior to this,he spent seven years at Oracle as a hardware e

5、ngineer in the volume server space.Ethan earned his BS in Electrical Engineering in 2013 and his MEng in Electrical Engineering and Computer science in 2014 from the Massachusetts Institute of Technology.His interests are in commercial power solutions and power distribution network design,measuremen

6、t,and analysis.Kristoffer Skytte is an Application Engineer Architect at Cadence focusing on chip,package,board and full system analysis including SI,PI,thermal and EMC related challenges.He has held various application engineering roles for the past 20 years.As of late he has spent significant effo