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PARAMETER MEASUREMENT INFORMATION
Sx:nP
TS2PCIE2212
Sx:nN
Dx:nP
Dx:nN
Input
Generator
V
I
V
O
V
COM
V
COM
+ 400 mV
Input
Waveform
Output
Waveform
t
PHL
t
PLH
V
COM
V
CRS
V
CRS
V
COM
− 400 mV
V
OH
V
OL
V
COM
= 1.5 V
t
sk
= |t
PLHn
– t
PHLn
|
V
CRS
is the cross point of the differential signal.
CTRL0
A1 GND
SA:n = DB:n, DA:n = open
TEST PATH
GNDSA:n = DA:n, SB:n = DB:n
V
DD
T1
(1)
(1) T1 is an external terminal.
V
DD
T1
(1)
V
DD
100 Ω
TS2PCIE2212
PCI Express™ SIGNAL SWITCH
SCDS209 – JUNE 2006
Figure 7. Test Circuit for Propagation Delay and Intra-Pair Skew
7
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