MAX13442E Datasheet, PDF (9/18 Pages) Maxim Integrated Products – ±15kV ESD-Protected, ±80V Fault-Protected, Fail-Safe RS-485/J1708 Transceivers

±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
Test Circuits and Waveforms (continued)
0 OR 3V
GENERATOR
(NOTE 4)
A
DI
D
B
DE
50Ω
S1
C_L = 50pF
(NOTE 5)
A, B
R_L = 500Ω
V_OM =
V_OH + V_OL
2
≈ 1.5V
Figure 5. Driver Enable and Disable Times
0 OR 3V
GENERATOR
(NOTE 4)
DI
A
S1
D
B
DE _{CL = 50pF}
(NOTE 5)
50Ω
V_CC
R_L = 500Ω
A, B
3V
DE
1.5V
1.5V
t_PDZH
0V
t_PDHS
t_PDHZ
A, B
V_OM
0.25V ^VOH
0V
3V
DE
1.5V
1.5V
t_PDZL
0V
t_PDLS
t_PDLZ
A, B
VOM
V_CC
0.25V
V_OL
Figure 6. Driver Enable and Disable Times
GENERATOR
(NOTE 4)
50Ω
A
V_ID
R
B
R_O
C_L = 20pF
(NOTE 5)
1.0V
0V
2.0V
(A–B)
1.0V
t_RPLH
1.0V
0V
t_RPHL
RO
V_OM
V_CC
V_OM
0V
Figure 7. Receiver Propagation Delay
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