TSC2046 Y+,Y-,X+,X- 为何与GND之间接电容?
时间:10-02
整理:3721RD
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今天调试TSC2046 ,发现要在 Y+,Y-,X+,X- 为何与GND之间接0.1uf 电容才正常工作,这是为何?TI DEMO图上有画出来,但是建议NOT install,也就是不要装上,
感觉有点矛盾?请帮忙解惑,谢谢。
为何没人答复?
这几个电容,如果系统能工作就不要加,因为using these capacitors increases screen settling time and
requires longer panel voltage stabilization times, and possibly longer pre-charge and sense times.
When the capacitors must be used, first start with adding a small capacitor (for example, 0.01 μF), placed
only on the negative (X– or Y–) pin.
不知道您清楚了没有?