Datasheet

TEST CIRCUIT
Output
R
L
= 110 Ω
5 V
S1
50 Ω
0 V
VOLTAGE WAVEFORMS
5 V
V
OL
0.5 V
t
PZL
3 V
0 V
t
PLZ
2.3 V
1.5 V
Output
Input
C
L
= 50 pF
(see Note B)
Generator
(see Note A)
1.5 V
V
O
V
ID
I
O
50 Ω
C
L
= 10 pF
(see Note B)
Output
1.5 V
0 V
TEST CIRCUIT VOLTAGE WAVEFORMS
1.5 V
3 V
0 V
Input
Output
1.3 V
V
OH
V
OL
t
PHL
t
PLH
Input
Generator
(see Note A)
1.5 V
1.3 V
t
f
t
r
90%
10%
SN65LBC180A
SN75LBC180A
SLLS378D – MAY 2000 – REVISED APRIL 2009 ............................................................................................................................................................... www.ti.com
PARAMETER MEASUREMENT INFORMATION (continued)
A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t
r
≤ 6
ns, t
f
≤ 6 ns, Z
O
= 50 Ω .
B. C
L
includes probe and jig capacitance.
Figure 5. Driver Test Circuit and Voltage Waveforms
Figure 6. Receiver V
OH
and V
OL
A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t
r
≤ 6
ns, t
f
≤ 6 ns, Z
O
= 50 Ω .
B. C
L
includes probe and jig capacitance.
Figure 7. Receiver Test Circuit and Voltage Waveforms
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