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dadatong_201304

dadatong_201304

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<p>A Category 3 Cable Assembly shall not draw more than 55 mA from a Source, even when connected to a Sink that is <br>drawing the permitted maximum of 50 mA on its +5V Power pin. </p><p>按规范里面定义,正常的source不能满足芯片的功耗。需要外加电源。</p>
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多么痛的领悟

多么痛的领悟

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