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VDD，DVDD，AVDD，VCC，AFVDD，DOVDD，IOVDD
2022-06-13 09:27:00 【深色瞳孔】
電路中的VDD，DVDD，AVDD，VCC，AFVDD，DOVDD，IOVDD的區別
VCC錶示給芯片電源供電；
VDD錶示給芯片中的器件單獨供電，當然也可也從內部電源的VCC整合過來，就不用外部單獨提供；所以有些芯片只有VCC，沒有VDD，所以一般VDD＜＝VCC
AVDD錶示模擬電壓，給芯片中的模擬器件供電，比如camera供電就要用到AVDD，也是相對於DVDD區別出來的，
DVDD錶示數字電壓，給芯片的數字信號供電，比如０１０１，
AFVDD錶示auto focus VDD自動對焦電壓，是針對一些馬達之類的電壓，
DOVDD和IOVDD是芯片引脚出來的電壓
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