Datasheet

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    
   
SCDS161A − MAY 2004 – REVISED OCTOBER 2004
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
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9
100 Ω
V
CC
TS3L100
S
IA
0
IA
1
YA
IB
0
IB
1
YB
GND
V
CC
= 3.3 V
E
ID
0
ID
1
YD
IC
0
IC
1
YC
0.1 µF
100 Ω
100 Ω
100 Ω
Oscilloscope
Pulse
Generator
V
I+
V
I−
V
O+
V
O−
Figure 8. Differential Crosstalk Measurement
Differential crosstalk is a measure of coupling noise between a transmit and receive pair in the LAN application.
Differential crosstalk depends on the edge rate, frequency, and load. This is calculated from the equation,
X
TALK
(Diff) db = 20 log V
O
(Diff)/V
I
(Diff), where V
O
(Diff) is the differential output voltage and V
I
(Diff) is the differential
input voltage.