关于stubs是怎样的走线?3 h Z9 R. w. v: V3 e5 S5 m
• Avoid stubs on high-speed USB signals, as stubs will cause signal reflections and ; h' C' V4 O* u5 O5 P# Z. ^6 w6 F5 [affect signal quality. If a stub is unavoidable in the design, the total of all the stubs + h6 g; U- M, m' L8 y2 h% }on a particular line should not be greater than 200 mils. " W( @+ V e, `8 K) P& I请翻译,谢谢!