MAX3440EASA データシートの表示（PDF） - Maxim Integrated
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MAX3440EASA
Maxim Integrated
MAX3440EASA Datasheet PDF : 19 Pages
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MAX3440E–MAX3444E
±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
Test Circuits and Waveforms
A
DI
D
B
VCC
RL
2
VOD
RL
2
VOC
Figure 1. Driver VOD and VOC
A
VID
R
RO
B
0
VOL
IOL
VOH
IOH
(+)
(-)
Figure 2. Receiver VOH and VOL
GENERATOR
(NOTE 4)
A
DI
S1
D
B
50Ω
VCC
VOM
RL
2
OUT
CL = 50pF
(NOTE 5)
VOM
=
VOH +
2
VOL
ª
1.5V
Figure 3. Driver Propagation Times
3V
DI
1.5V
1.5V
0
tPLHA
tPHLA
VOH
A
VOM
VOM
VOL
tPHLB
tPLHB
B
VOM
VOH
VOM
VOL
A
DI
CL
D
GENERATOR
(NOTE 4)
B
50Ω
VCC
CL
OUT
RL
CL = 50pF (NOTE 5)
Figure 4. Driver Differential Output Delay and Transition Times
1.5V
DI
tDPLH
(A–B)
90%
50%
10%
tLH
1.5V
tDPHL
90%
50%
10%
tHL
3V
0
ª 2.0V
ª -2.0V
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