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VDD,DVDD,AVDD,VCC,AFVDD,DOVDD,IOVDD
2022-06-13 09:23:00 【深色瞳孔】
电路中的VDD,DVDD,AVDD,VCC,AFVDD,DOVDD,IOVDD的区别
VCC表示给芯片电源供电;
VDD表示给芯片中的器件单独供电,当然也可也从内部电源的VCC整合过来,就不用外部单独提供;所以有些芯片只有VCC,没有VDD,所以一般VDD<=VCC
AVDD表示模拟电压,给芯片中的模拟器件供电,比如camera供电就要用到AVDD,也是相对于DVDD区别出来的,
DVDD表示数字电压,给芯片的数字信号供电,比如0101,
AFVDD表示auto focus VDD自动对焦电压,是针对一些马达之类的电压,
DOVDD和IOVDD是芯片引脚出来的电压
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