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本文分析了目前触控屏产业所用的PCB的设计布局以及元器件布置,并针对电容式多点触控芯片模拟前端接口的几种电路设计进行了研究,阐述了电容式触控屏的信号采集、处理方式以及抗干扰措施。
This paper analyzes the design and layout of the PCBs used in the touch screen industry and the layout of the components. Several circuit designs for the analog front-end interface of the capacitive multi-touch chip are also discussed. The signal acquisition of the capacitive touch screen , Treatment methods and anti-jamming measures.