Datasheet

Y
Z
A
B
V
ID
V
OD
V
IB
V
IA
V
OZ
V
OY
I
IB
I
IA
V
IA
+V
IB
V
IC
2
V
OY
+V
OZ
2
V
OD
100 Ω
3.75 kΩ
3.75 kΩ
_
+
0 V ≤ V
(test)
≤ 2.4 V
Y
Z
V
OC
49.9 Ω ±1%
Y
1 pF
V
OC(PP)
V
OC(SS)
V
OC
≈1.4 V
B
A
≈1 V
49.9 Ω ±1%
Z
A
V
ID
B
1.4 V
1 V
t
PLH
0.4 V
0 V
V
IA
V
IB
V
ID
80%
t
PHL
20%
t
f
t
r
V
OY
- V
OZ
0 V
Differential
Y
Z
A
B
V
ID
1 pF
V
IB
V
IA
V
OY
-0.4 V
V
OZ
100 Ω
SN65LVDT125A
SN65LVDS125A
www.ti.com SLLS595C –OCTOBER 2003– REVISED JUNE 2011
PARAMETER MEASUREMENT INFORMATION
Figure 1. Voltage and Current Definitions
Figure 2. Differential Output Voltage (V
OD
) Test Circuit
NOTE: All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ 1 ns, pulse-repetition rate
(PRR) = 0.5 Mpps, pulse width = 500 ±10 ns; R
L
= 100W; C
L
includes instrumentation and fixture capacitance within
0,06 mm of the D.U.T.; the measurement of V
OC(PP)
is made on test equipment with a -3 dB bandwidth of at least 300
MHz.
Figure 3. Test Circuit and Definitions fot the Driver Common-Mode Output Voltage
NOTE: All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ .25 ns, pulse-repetition rate
(PRR) = 0.5 Mpps, pulse width = 500 ± 10 ns . C
L
includes instrumentation and fixture capacitance within 0,06 mm of
the D.U.T.
Figure 4. Timing Test Circuit and Waveforms
Copyright © 2003–2011, Texas Instruments Incorporated 7