【通信应用笔记】S- TOUCH设备：系统考虑.pdf AN2693 Application note S-Touch devices: system considerations Introduction This application note discusses some of the system level factors that can influence the touch detection of capacitive touch sensors. The various size, shape and materials used in sensors pose a challenge to the design of a reliable touch device. The environmental effects (temperature, humidity, EMI) also influence the sensor’s performance. Using a finite state machine approach, the S-Touch capacitive touch sensors are totally hard-wired and thus able to pr……