Datasheet

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    
 ±  
SLLS567E − MAY 2003 − REVISED JANUARY 2004
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50 Ω
TEST CIRCUIT VOLTAGE WAVEFORMS
0 V
3 V
Output
Input
V
OL
V
OH
t
PLH (D)
Generator
(see Note B)
R
L
RS-232
Output
t
PHL (D)
C
L
(see Note A)
SR(tr) +
6V
t
PHL (D)
or t
PLH (D)
NOTES: A. C
L
includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 kbit/s, Z
O
= 50 Ω, 50% duty cycle, t
r
≤ 10 ns, t
f
≤ 10 ns.
1.5 V 1.5 V
3 V
−3 V
3 V
−3 V
0 V
SHDN
Figure 2. Driver Slew Rate and Propagation Delay Times
TEST CIRCUIT VOLTAGE WAVEFORMS
0 V
3 V
Output
Input
V
OL
V
OH
t
PLH (D)
t
PHL (D)
50%
50%
NOTES: A. C
L
includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 kbit/s, Z
O
= 50 Ω, 50% duty cycle, t
r
≤ 10 ns, t
f
≤ 10 ns.
1.5 V 1.5 V
50 Ω
Generator
(see Note B)
R
L
RS-232
Output
C
L
(see Note A)
0 V
SHDN
Figure 3. Driver Pulse Skew
TEST CIRCUIT VOLTAGE WAVEFORMS
50 Ω
50%
50%
−3 V
3 V
1.5 V
1.5 V
Output
Input
V
OL
V
OH
t
PHL (R)
Generator
(see Note B)
t
PLH (R)
Output
C
L
(see Note A)
NOTES: A. C
L
includes probe and jig capacitance.
B. The pulse generator has the following characteristics: Z
O
= 50 Ω, 50% duty cycle, t
r
≤ 10 ns, t
f
≤ 10 ns.
0 V
SHDN
0 V
EN
Figure 4. Receiver Propagation Delay Times