MAX3440E(2002) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX3440E
(Rev.:2002)
(Rev.:2002)
Maxim Integrated
MAX3440E Datasheet PDF : 20 Pages
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±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
Test Circuits and Waveforms (continued)
0 OR 3V
GENERATOR
(NOTE 4)
A
DI
D
B
DE
50W
S1
CL = 50pF
(NOTE 5)
A, B
RL = 500W
» VOM =
VOH + VOL
2
1.5V
3V
DE
1.5V
1.5V
tPDZH
0
tPDHS
tPDHZ
A, B
VOM
0.25V VOH
0
Figure 5. Driver Enable and Disable Times
0 OR 3V
GENERATOR
(NOTE 4)
DI
A
S1
D
B
DE CL = 50pF
(NOTE 5)
50Ω
VCC
RL = 500Ω
A, B
3V
DE
1.5V
1.5V
tPDZL
0
tPDLS
tPDLZ
A, B
VOM
VCC
0.25V
VOL
Figure 6. Driver Enable and Disable Times
GENERATOR
(NOTE 4)
50Ω
A
VID
R
B
RO
CL = 20pF
(NOTE 5)
1.0V
0
2.0V
(A–B)
1.0V
tRPLH
1.0V
0
tRPHL
RO
VOM
VCC
VOM
0
Figure 7. Receiver Propagation Delay
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