IPC-TM-650 EN 2022 试验方法1.pdf - 第471页

Figure 4-1 Resolutio n and Elect rical Length of T ransmission Line t V adequate resolution t V inadequate resolution 2 T p transmission line IPC-TM-650 Page 3 of 23

100%1 / 824
IPC-2141
IPC-TM-650
IPC-TM-650
Page 2 of 23
Figure 4-1 Resolution and Electrical Length of Transmission Line
t
V
adequate resolution
t
V
inadequate resolution
2 T
p
transmission line
IPC-TM-650
Page 3 of 23
Table 4-I Resolution of TDR Systems
TDR
System
Risetime Resolution 4X Resolution
Figure 4-2 Potential TDR Step Aberrations
overshoot
undershoot
ringing
low frequency drift
IPC-TM-650
Page 4 of 23