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Single ended signal transmission (lemmy.world)

submitted 5 days ago by TelepathicWalrus@lemmy.world to c/askelectronics@discuss.tchncs.de

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Hi,

I am thinking about the best way to transmit 5 single ended signals from one board to another as well as ground and 2 power rails. I was thinking cat5e cable with a standard rj45 plug but as cat5e is twisted pair I'm concerned about crosstalk.

The cable between the two boards would be a maximum of 50cm. 3 of the signals are addresses for a multiplexer that would change at a maximum speed of 2ms per change. One of the other signals is a 20khz pwm signal. The final signal is a zc detector for mains so max Freq of 100/120hz.

There may be high current switches at ac line frequency (50/60hz) near by.

Would single ended transmission with cat5e cable be okay for this or would I need differential signalling? If I need differential signalling, what sort of cable/connector could I use?

Any help is appreciated

Thanks

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[–] hmn@lemmy.staphup.nl 1 points 4 days ago* (last edited 4 days ago) (1 children)

Hi there,

i'm quite new to all of this, but i found this guy who has soem interesting info regarding grouding/coupling in designs.

Because you said any help is appreciated, maybe you're interested. Basically Hans Rosenberg has a 4 part yt lecture as a teaser to his free 9 part minicourse. His free minicourse is "Module 1" of his paid full course.

In his 4 part teaser he also throws in an example for digital signals

[–] TelepathicWalrus@lemmy.world 1 points 18 hours ago

Oh thanks, I'll check it out 👍