1 Reply Latest reply on Jul 29, 2015 12:05 AM by hima

    capsensor with analog mux

    sung.jin.kang

      hi there.

         

       

         

      I would like to use a circle type electrode as both button type capsensor and other use. 

         

      so, I tried use a amux to change path to the circle type electrode.

         

       

         

      if amux set 0, the path is ( first setting ) 

         

      CapSense_CSD -> mux -> the circle type electrode

         

      if amux set 1, the path is ( second setting )

         

      another circuit -> mux -> the circle type electrode 

         

       

         

      the problem is.. when i use the first setting the capsensor button shows always ON state. 

         

      when mux is disabled,  capsensor works fine. so I think activated mux should changes capsensor working condition.

         

       

         

      I have thought that the mux is just switch.... the above condition says another properties of mux must be exist..

         

       

         

      thanks 

         

      kkadin