MAX3440E Maxim, MAX3440E Datasheet - Page 9

• Manufacturer Part Number: MAX3440E
• Description: 15kV ESD-Protected / 60V Fault-Protected / 10Mbps / Fail-Safe RS-485/J1708 Transceivers
• Manufacturer: Maxim

Figure 8. Receiver Enable and Disable Times
Note 4: The input pulse is supplied by a generator with the following characteristics: f = 5MHz, 50% duty cycle; tr ≤ 6ns; Z
Note 5: C
10Mbps, Fail-Safe RS-485/J1708 Transceivers
RO
RE
RO
RE
±15kV ESD-Protected, ±60V Fault-Protected,
L
0.5V
includes probe and stray capacitance.
_______________________________________________________________________________________
1.5V
-1.5V
1.5V
t
RPHZ
t
t
t
RPSH
RPWAKE
RPZH
GENERATOR
S3
(NOTE 4)
1.5V
1.5V
V
ID
A
B
50Ω
R
3V
0
V
0
3V
0
V
0
OH
OH
S1 OPEN
S2 CLOSED
S3 = 1.5V
S1 OPEN
S2 CLOSED
S3 = 1.5V
R
O
Test Circuits and Waveforms (continued)
C
(NOTE 5)
L
= 20pF
1kΩ
RO
RO
RE
RE
S1
S2
1.5V
t
RPLZ
0.5V
t
t
RPSL
RPZL
1.5V
V
1.5V
CC
3V
0
V
V
3V
0
V
V
CC
OL
CC
OL
S1 CLOSED
S2 OPEN
S3 = -1.5V
S1 CLOSED
S2 OPEN
S3 = -1.5V
0
= 50Ω.
9