SLLS576D − JULY 2003 − REVISED JANUARY 2004
MAX202
5 V DUAL RS 232 LINE DRIVER/RECEIVER
WITH
±15
kV ESD PROTECTION
PARAMETER MEASUREMENT INFORMATION
3V
Generator
(see Note B)
RS-232
Output
50
Ω
RL
CL
(see Note A)
Output
TEST CIRCUIT
Input
1.5 V
tPHL (D)
50%
VOLTAGE WAVEFORMS
1.5 V
0V
tPLH (D)
VOH
50%
VOL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 kbit/s, ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 2. Driver Pulse Skew
Input
Output
Generator
(see Note B)
50
Ω
CL
(see Note A)
tPHL (R)
Output
TEST CIRCUIT
3V
1.5 V
1.5 V
−3 V
tPLH (R)
VOH
50%
VOLTAGE WAVEFORMS
50%
VOL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 3. Receiver Propagation Delay Times
6
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DALLAS, TEXAS 75265
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