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Single ended signal transmission (lemmy.world)

submitted 3 weeks 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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[–] TelepathicWalrus@lemmy.world 1 points 3 weeks ago

I like the use of the rj45 because it is cheap, easy to assemble and reliable. The plugs won't be accessible to the end user unless they open up the device so hopfully they won't fry anything.

Ultimately I will just have to try and see what works and what doesn't.

Thank you for your reply 😊