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USB2.0 信号质量测试包括:
眼图测试(Eye-Diagram testing)
信号速率(Signal Rate)
包结尾宽度(End of Packet Width)
交叉点电压范围(Cross-over voltage range (for LS and FS))
JK抖动(JK jitter)
KJ抖动(KJ jitter)
连续抖动(Consecutive jitter)
单调性测试(Monotonic test (for HS))
上升与下降时间(Rise and Fall times)