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发表于 2013-9-4 13:25:16
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本帖最后由 朱立平 于 2013-9-4 14:10 编辑
For ESD consideration the resistor should plase before the inv, the circuit connection may be wrong.
For circuit consideration the resistor & inv can be a low pass filter slow down the input signal , filter out the high speed glitch noise. But the resistor will always flow current, if the resistor is large enough. But if the resistor is very large the inv & resistor will have wery week low pass ability. So I think this resistor connection (between inv`s input & output) is a stupid design. |
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