Datasheet
+3V to +5V, 2500V
RMS
Isolated RS-485/RS-422
Transceivers with ±15kV ESD Protection
SWITCHING ELECTRICAL CHARACTERISTICS (MXL1535E)
(V
CC1
= +4.5V to +5.5V, V
CC2
= +4.5V to +7.5V, R
L
= 27Ω, C
L
= 50pF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values
are at V
CC1
= +5V, V
CC2
= +5V, T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Data Sample Jitter t
J
Figure 6 220 285 ns
Max Baud Rate f
MAX
SLO = high, Figure 5, (Note 6) 250 450 kBd
SLO = high, Figures 2, 6 430 855
Driver-Differential Output Delay
Time
t
DD
SLO = low, Figures 2, 6 850 1560
ns
SLO = high, V
CC2
= +4.5V 45 100
Driver-Differential Output
Transition Time
t
TD
SLO = low, V
CC2
= +4.5V 150 260 1000
ns
Driver-Output Enable Time t
PZL
, t
PZH
SLO = high, DI = high or low,
Figure 3, 7
730 1400 ns
Driver-Output Disable Time t
PHZ
, t
PLZ
SLO = high, DI = high or low,
Figures 3, 7
720 1300 ns
Receiver-Propagation Delay Time
to RO1
t
PLH1
,
t
PHL1
Figures 4, 8 440 855 ns
Receiver-Propagation Delay Time
to RO2
t
PLH2
,
t
PHL2
Figures 4, 8 40 ns
RO1, RO2 Rise or Fall Time t
R
, t
F
Figures 4, 8 40 ns
Receiver-Output Enable Time
RO1
t
ZL
, t
ZH
Figures 4, 9 30 ns
Receiver-Output Disable Time
RO1
t
LZ
, t
HZ
Figures 4, 9 30 ns
Initial Startup Time (from Internal
Communication Fault)
(Note 5) 1200 ns
Internal Communication Timeout
Fault Time
(Note 5) 1200 ns
0°C to +70°C 56
ST1, ST2 Duty Cycle
-40°C to +85°C 57
%
ESD Protection Human Body Model (A, B, Y, Z) ±15 kV
Note 1: Receiver inputs are 96kΩ minimum resistance, which is 1/8 unit load.
Note 2: 60s test result is guaranteed by correlation from 1s result.
Note 3: V
ISO
is the voltage difference between GND1 and GND2.
Note 4: The maximum data rate is specified using the maximum jitter value according to the formula: data rate = 1 / (4t
J
). See the
Skew
section for more information.
Note 5: Initial startup time is the time for communication to recover after a fault condition. Internal communication timeout fault time
is the time before a fault is indicated on RE, after internal communication has stopped.
Note 6: Bd = 2 bits.
MAX3535E/MXL1535E
Maxim Integrated
9