TI中文支持网Part Number:DP83822HF
您好，我在设计DP83822的原理图中，看到MDI接口部分描述，变压器的抽头的电压跟随AVD引脚电压，但是端接端接电压好像是固定3.3V。如果AVD的电压是1.8V供电，这个端接电压也是3.3V不变吗，和抽头电压不一样？
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Lydia：
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Links：
您好，
MDI上的PU端接电压以及中心抽头电压均应为AVD电源。 在这种情况下,由于AVD使用1.8V,因此终端电压和中心抽头电压也将是1.8V。
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longer：
收到，感谢
