Dirty USB-C Tricks: One Port for the Price of Two

Re:Dirty USB-C Tricks: One Port for the Price of Two by rolenthedeep on Sunday January 01, 2023 @04:05PM (#34210864)

This is all pretty standard electronics design these days. If you're interested to learn more, you can search for "differential signaling".

What it comes down to is that once your signal rate is high enough, the speed that electrons move becomes a concern. Matching the length of your traces ensures that a signal sent down two wires at the same time arrives at the same time.

That's the general idea anyway. This topic gets very complex the further down you go

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Re:Dirty USB-C Tricks: One Port for the Price of Two by mlyle on Sunday January 01, 2023 @04:32PM (#34211181)

> What it comes down to is that once your signal rate is high enough, the speed that electrons move becomes a concern.

To be clear-- the speed that charge moves in the cable. The actual electrons move really, really slow-- often centimeters per hour slow.

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Re:Dirty USB-C Tricks: One Port for the Price of Two by rolenthedeep on Sunday January 01, 2023 @06:20PM (#34212196)

While that's true, it sounds much less exciting.

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