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Decoupling Capacitor Optimization for Power Integrity Webcast

1   Hour | Webcast - recorded | Where & When

Selecting the right decoupling capacitors for flat target impedance improves the power integrity of a power delivery network while often decreasing cost. Modern high speed designs have both mission mode simultaneous switching noise (SSN) and state change step loads that that exceed the response time of the voltage regulator module (VRM), and are lower frequency than what the on-die and package capacitors can handle. The decoupling capacitors must fill this gap and deliver the required power in this mid-range of frequencies between the VRM and the package/die target impedance bandwidth. The decoupling capacitors must also insure stability with the voltage regulator and minimize the “bandini mountain” parallel resonance with the package inductance. Learn how to use ADS PIPro to generate Electromagnetic (EM) models that account for PCB parasitics and then use the models to optimize the decoupling capacitors for low milliohms of impedance. See an example solution with a full end-to-end circuit simulation using state-based-average models for the point of load (POL) dc to dc converters, PCB EM models, and package/die models.


Heidi Barnes
Signal and Power Integrity Applications Engineer
Keysight Technologies

Heidi Barnes is a Senior Application Engineer for High Speed Digital applications in the EEsof EDA Group of Keysight Technologies. Her recent activities include the application of electromagnetic, transient, and channel simulators to solve the challenges of high speed SERDES and parallel bus communication links. Heidi’s past experience includes 6 years in signal integrity for ATE test fixtures for Verigy, an Advantest Group, 6 years in RF/Microwave microcircuit packaging for Agilent Technologies, and 10 years with NASA in the aerospace industry. She was awarded the DesignCon Engineer of the Year Award on February 2, 2017.

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Training & Event Materials

Decoupling Capacitor Optimization for Power Integrity Presentation  
Slides from the March 29, 2018 webcast

Seminar Materials 2018-03-29