*Have* to connect VDDA ?

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HuEl_264296
Level 5
Level 5
First like given 25 sign-ins First solution authored

I am using a CY8C5468 in a new design, but I am not using any analog blocks in the device.  What would happen if I left VDDA, VSSA, VCCA floating?

   

 

   

Many thanks

   

Hugo

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

Since no voltage in a PSoC4 design may be larger than VDDA you will have to connect that at least. So VSSA must be connected too. I do not know whether the other two MUST be connected, but I've never seen a design where those were left floating.

   

 

   

Bob

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