AN11122 Water and condensation safe touch sensing with the NXP capacitive touch sensors Application note
■Capacitive touch sensing is considered as a revolutionary development to replace mechanical buttons in all application areas. While providing an easy to implement hermetic touch interface with no mechanical parts, factors as accumulated contaminations, condensation and water droplets have been less pleasant topics to deal with. Robustness is a major concern. Especially in harsh environments as workshops where contaminations are usual, in automotive applications where extreme climate conditions apply and also in white goods where wet hands and water splash is encountered, special attention needs to be given.
■This application note explains the unique auto-calibration feature of the touch sensor family from NXP and provides guidelines for enhanced water and condensation safe operation, focusing on applications with capacitive touch buttons.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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4 March 2014 |
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Rev. 3 |
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AN11122 |
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742 KB |
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