Datasheet

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PARAMETER MEASUREMENT INFORMATION
Y
Z
A
B
I
IB
I
IA
(V
IA
+V
IB
)/2 (V
OY
+V
OZ
)/2
V
IC
V
IB
V
IA
V
ID
V
OD
V
OZ
V
OY
V
OD
100 Ω
Y
Z
3.74 kΩ
3.74 kΩ
_
+
0 V ≤ V
test
≤ 2.4 V
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
B
V
ID
1.4 V
1 V
t
PLH
0.4 V
-0.4 V
V
IA
V
IB
V
ID
80%
t
PHL
20%
t
f
t
r
V
OD
0 V
0 V
Y
Z
A
B
1 pF
100 Ω
V
IB
V
IA
V
ID
V
OD
SN65LVDS122
SN65LVDT122
SLLS525B – MAY 2002 – REVISED JUNE 2004
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
≤ 0.25 ns, pulse repetition rate
(PRR) = 0.5 Mpps, pulse width = 500 ±10 ns; R
L
= 100 Ω; 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 for the Driver Common-Mode Output Voltage
NOTE: All input pulses are supplied by a generator having the following characteristics: t
r
or t
f
≤ 0.25 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
6