好的,我很清楚是什么答案都是消极的一面(二极管,内部接地),但积极的一面去VDDIO。如果我们不需要任何引脚驱动高,那么如果VDDIO是悬空的二极管可以有效(虽然没有共有他们一起回到频道)。
这不是一个一个通道的影响在其他情况下,除非他们之间有电压差(普通模式),使二极管导通。这可以从60Hz交流耦合到线路长工业工厂中发生。
迈克。
以上来自于百度翻译
以下为原文
Well, I was pretty sure that was what the answer would be for the negative side (diodes that are internally grounded), but the positive side goes to Vddio. If we didn't need to drive any pins high, then if Vddio was left unconnected those diodes would be effectively not there (although commoned together they are back to back from channel to channel).
This is not a case of one channel influencing the other UNLESS there is a voltage difference between them (common mode) that then causes the diodes to conduct. This can happen from 60Hz AC being coupled to long lines in an industrial plant.
Mike.
好的,我很清楚是什么答案都是消极的一面(二极管,内部接地),但积极的一面去VDDIO。如果我们不需要任何引脚驱动高,那么如果VDDIO是悬空的二极管可以有效(虽然没有共有他们一起回到频道)。
这不是一个一个通道的影响在其他情况下,除非他们之间有电压差(普通模式),使二极管导通。这可以从60Hz交流耦合到线路长工业工厂中发生。
迈克。
以上来自于百度翻译
以下为原文
Well, I was pretty sure that was what the answer would be for the negative side (diodes that are internally grounded), but the positive side goes to Vddio. If we didn't need to drive any pins high, then if Vddio was left unconnected those diodes would be effectively not there (although commoned together they are back to back from channel to channel).
This is not a case of one channel influencing the other UNLESS there is a voltage difference between them (common mode) that then causes the diodes to conduct. This can happen from 60Hz AC being coupled to long lines in an industrial plant.
Mike.
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