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PARAMETER MEASUREMENT INFORMATION
V
AB
A
B
I
A
V
B
V
A
V
OS
V
A
+ V
B
2
V
I
D
V
CC
I
B
I
I
V
AB
49.9 Ω
3.32 kΩ
3.32 kΩ
_
+
-1 V ≤ V
test
≤ 3.4 V
A
B
D
V
OS
R1
24.9 Ω
A
C3
2.5 pF
V
OS(PP)
∆V
OS(SS)
V
OS(SS)
≈ 1.3 V
B
A
≈ 0.7 V
B
D
R2
24.9 Ω
C1
1 pF
C2
1 pF
V
Test
+
-
A
B
I
OS
0 V or V
CC
-1 V or 3.4 V
SN65MLVD080
SN65MLVD082
SLLS581B – SEPTEMBER 2003 – REVISED SEPTEMBER 2005
Figure 1. Driver Voltage and Current Definitions
NOTE: All resistors are 1% tolerance.
Figure 2. Differential Output Voltage Test Circuit
A. All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ 1 ns, pulse frequency = 1
MHz, duty cycle = 50 ± 5%.
B. C1, C2 and C3 include instrumentation and fixture capacitance within 2 cm of the D.U.T. and are ± 20%.
C. R1 and R2 are metal film, surface mount, ± 1%, and located within 2 cm of the D.U.T.
D. The measurement of V
OS(PP)
is made on test equipment with a –3 dB bandwidth of at least 1 GHz.
Figure 3. Test Circuit and Definitions for the Driver Common-Mode Output Voltage
Figure 4. Driver Short-Circuit Test Circuit
7
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