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PARAMETER MEASUREMENT INFORMATION
V
I
A
(V
OY
+ V
OZ
)/2
I
OZ
I
OY
Y
Z
V
OD
V
OY
V
OC
I
I
V
OZ
Y
Z
V
OD
Input
(see Note A)
C
L
= 10 pF
(2 Places)
(see Note B)
100 Ω
± 1%
2 V
1.4 V
0.8 V
t
PLH
t
PHL
100%
80%
20%
0%
Input
V
OD
0
t
f
t
r
NOTES: A. All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ 1 ns, pulse repetition rate (PRR) = 50 Mpps,
pulse width = 10 ± 0.2 ns.
B. C
L
includes instrumentation and fixture capacitance within 6 mm of the D.U.T.
Y
Z
Input
(see Note A)
C
L
= 10 pF
(2 Places)
(see Note B)
49.9 Ω ± 1% (2 Places)
V
OC
A
A
V
OC
V
OC(PP)
(see Note C)
V
OC(SS)
0
3 V
NOTES: A. All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ 1 ns, pulse repetition rate (PRR) = 50 Mpps,
pulse width = 10 ± 0.2 ns.
B. C
L
includes instrumentation and fixture capacitance within 6 mm of the D.U.T.
C. The measurement of V
OC(PP)
is made on test equipment with a –3-dB bandwidth of at least 300 MHz.
SN55LVDS31, SN65LVDS31
SN65LVDS3487, SN65LVDS9638
SLLS261L – JULY 1997 – REVISED JULY 2007
Figure 1. Voltage and Current Definitions
Figure 2. Test Circuit, Timing, and Voltage Definitions for the Differential Output Signal
Figure 3. Test Circuit and Definitions for the Driver Common-Mode Output Voltage
8
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