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Original question:
[参考译文] TS3DS10224：阻抗设置
您好
已经收到了您的案例，调查需要些时间，感谢您的耐心等待
没有计算公式，这个和TS3DS10224本身没有关系，它是无源开关。图片中的阻抗值是因为芯片两端接的其他设备对信号线有要求，需要阻抗匹配，以便信号传输达到最佳。
您也可以看一下这个帖子。
(+) TS3DS10224: Layout impedance suggestion for USB2.0 application - Switches & multiplexers forum - Switches & multiplexers - TI E2E support forums
