USB-C "Cable"

USB-C20-PLUG-J-SMT-DC-TR

Do you see where I am going with this?

1 Like

Not quite?
A usb-c 2.0 male to male adapter. As short as possible. But what for?

Also, is CC1 and CC2 tied together? If so, it’s not going to like that.

You are correct, I screwed up lol; I want to fit little boards like these into an expansion card.

Oh, Nice! I forgot about fitting boards like that in.

1 Like

It looks busy, but I think I fixed it.

1 Like

I was able to rotate the rear connector to untwist the traces…

I have another idea that doesn’t involve SMT, but I only have it on paper.

1 Like

You could use a power plane for the VBUS and GND. 4 layers board are cheap and your board is small enough to be worth it.

2 layers is plenty though, don’t you think?

1 Like

I don’t see the advantage of going 2 layers rather than 4. When prototyping you’re better off going for reliability rather than penny pinching.
A ground plane will help with noise immunity and better power distribution. Also done right it could provide some mechanical strength to the connector since your connector is surface mount only. With a few via and a copper pour around your power pad, these will make it harder to tear the pad off.

I only started using KiCad yesterday, and I’m more of a mechanical guy really; is noise really a concern with such short traces?

Feedback is appreciated :slight_smile:

We all start somewhere and I’m glad you asked those questions. For a simple board like that you can send this board as is to fab and it would work (granted you routed all the trace correctly) because usb2.0 is pretty lenient when it come to impedance miss match just don’t think it will be the same for your future board. I can send you to this reference to better understand why a ground planes are important for signal integrity.

Hope it help…

1 Like