HW Interview
MD-05 · Chapter 11 · Measurement, Debug & Failure Analysis

Probing USB 3, DisplayPort, HDMI

How do you measure high-speed interfaces such as USB 3, DisplayPort or HDMI?

Level●●● onsite design / senior
TrackGeneral board
Really testingMeasurement methodology at multi-Gb/s.
Full worked answer: in the book, page 272 — what to say first, how to explain it, the numbers worth quoting and the follow-ups. About the book →

Going deeper

Extra explanation that is not in the book: worked numbers, where people go wrong, and how to say it in the room.

Going deeper for this question is coming.

Errata

Correction: Scope bandwidth example split: about 8 GHz for 5 Gb/s, 13–16 GHz for 10 Gb/s. Fixed before the first printing. All errata

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