1 Reply Latest reply on Nov 13, 2018 12:51 AM by SampathS_11

    undesired signals at CY8C24894-24LTXI

    user_1070786

      Dear

       

      I have a design with embedded board ( EFUS) with Linux , together with a CY8C24894-24LTXI.

       

      On the cypress is connected a CTS keyboard ( touch detection of keys) .

       

      When the board is running , i have on the inputs unwanted signals ( even if my keyboard is disconnected). ( see picture fig004)

       

      Under the cypress, there is no plane and no high speed signal around

       

      Also the power on the cypress is clean

       

      It seems there is direct radiation into the cypress.

       

      Any suggestion?

       

       

      Greetings

      Stéphane