PROC054E_AWR_1_AWR_4_LP87524P.SchDoc原理图中,PMIC_NRST同时接了上拉和下拉电阻,但是看对应的BOM,发现下拉电阻没有贴。因此实时上该引脚是上拉。那放置下拉电阻R58的意义是什么?是否可以省掉?
类似引脚还有PMIC_BUCK_EN引脚,也请帮忙解释一下
非常感谢!
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PROC054E_AWR_1_AWR_4_LP87524P.SchDoc原理图中,PMIC_NRST同时接了上拉和下拉电阻,但是看对应的BOM,发现下拉电阻没有贴。因此实时上该引脚是上拉。那放置下拉电阻R58的意义是什么?是否可以省掉?
类似引脚还有PMIC_BUCK_EN引脚,也请帮忙解释一下
非常感谢!
请看下面的回复。
The pull down is not populated and also in the design checklist the pull up and cap to GND is recommended.