April 5-7, 2022|Santa Clara Convention Center| Santa Clara, CA


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Long-haul Inter-domain Power Noise

Speakers:

Ethan Koether  (Power Integrity Engineer, Project Kuiper - Amazon)

Istvan Novak  (Power Integrity Engineer, Samtec)

Mario Rotigni  (Lead EMC Engineer for Automotive Microcontroller and SoC Team, STMicroelectronics)

Authors:

Kristoffer Skytte  (Senior Principal Application Engineer, Cadence)

Joseph Hartman  (Principal Hardware Engineer, Oracle Corporation)

Shirin Farrahi  (Principal Software Engineer, Cadence)

Sammy Hindi  (Senior Principal Engineer, Ampere Computing)

John Phillips  (Principal Application Engineer, Cadence)

Location: Ballroom H

Date: Wednesday, April 6

Time: 11:15 am - 12:00 pm

Track: 10. Power Integrity in Power Distribution Networks, 06. System Co-Design: Modeling, Simulation & Measurement Validation

Format: Technical Session

Theme : Data Centers

Education Level: All

Pass Type: 2-Day Pass, All Access Pass

Vault Recording: TBD

Audience Level: All

The interaction of plane resonances in multi-layer, multiple power-domain board designs is explored for both a production and a test board. We will examine how the parameters of the plane cavities impact noise coupling in consideration of both resonance frequency and Q-value. The effects will be examined in both frequency and time domains for a simple step response. Methods to reduce coupling will also be explored, including thin laminates.

Takeaway

Cavity resonance noise can propagate across multiple power domains. A key indicator to the risk is the Q of the cavity. Thin laminates can lower cavity Q.

Intended Audience

For all audience levels.