HW Interview
SI-06 · Chapter 6 · Signal Integrity & Transmission Lines

Changing layers with a controlled-impedance line

Sketch a USB 2.0 pair going from the top layer to the bottom layer. What signal-integrity features do you add?

Level●● onsite technical
TrackSI & high-speed
Really testingThe return path is the other half of the signal.
Full worked answer: in the book, page 148 — 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

No corrections known for this question. All errata

Ask about this question

Stuck on a step, or think something is wrong? Send it with SI-06 in the subject. Good questions get answered on this page, and corrections go into the next printing.

Ask about SI-06

Related

← SI-05 Microstrip vs striplineSI-07 Crossing a plane split →