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PSoC™ 5, 3 & 1 Forum Discussions

Anonymous
Not applicable

Hello,

   

I'm wondering, if it would be possible, to place capsense-buttons on a flex PCB. The design guide mentions a max. track length of 50mm for flex cable. Is this still correct, if the top-layer would contain the buttons and the bottom-layer would contain hatched ground and button-signal-tracks? Would this be possible? The complete max. track length would be 5cm on flex-PCB + 2cm flex-cable + 7cm on FR4-PCB.

   

Or do you have better suggestions for creating a keypad connected to a PCB for controlling the rest of the device?

   

 

   

Best regards.

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3 Replies
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Dominik,

   

I am afraid that technical questions like yours can be answered by Cypress only. Create a MyCase (At top of this page: Design Support -> Create a Support Case ...)

   

 

   

Bob

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Anonymous
Not applicable

Thank you for your hint.
I opened a support case and will post the results here.

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ETRO_SSN583
Level 9
Level 9
100 sign-ins 5 likes given 1000 replies posted

Yes -

   

 

   

http://www.cypress.com/knowledge-base-article/capsense-flex-pcb-kba82731

   

http://www.cypress.com/documentation/application-notes/an64846-getting-started-capsense

   

 

   

Regards, Dana

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