MAX3291ESD-T Maxim Integrated, MAX3291ESD-T Datasheet - Page 9

• Manufacturer Part Number: MAX3291ESD-T
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated

Specifications of MAX3291ESD-T

• Data Rate: 5 Mbps to 10 Mbps
• Operating Supply Voltage: 5 V
• Supply Current: 3 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Number Of Drivers: 1
• Number Of Receivers: 1
• Product: RS-422/RS-485 Combination

Figure 9. Receiver Propagation Delay Test Circuit
X = Don’t care
Z = High impedance
SHUTDOWN = Low-power shutdown; driver and receiver outputs are high impedance.
RE
X
X
0
1
for High-Speed, Long-Distance Communication
RS-485/RS-422 Transceivers with Preemphasis
ATE
INPUTS
DE
1
1
0
0
_______________________________________________________________________________________
TRANSMITTING
V
ID
DI
1
0
X
X
Figure 11. Time-to-Shutdown Test Circuit
High-Z
B
A
Z
0
1
SHUTDOWN
High-Z and
OUTPUTS
R
R
High-Z
RO
Y
1
0
C
L
RE
DI
DE
MAX3291
MAX3292
Figure 10. Preemphasis Timing
0 DIFFERENTIAL
RE
0
0
0
1
1
Y
Z
INPUTS
N
N
V
CC
1k
INPUTS
DE
X
X
X
1
0
RO
RECEIVING
t
PRE
Y
Z
t
P
PTND
P
80%
≤ -0.2V
≥ 0.2V
Function Tables
Open
A-B
20%
X
X
50%
Y
Z
N
N
SHUTDOWN
High-Z and
OUTPUT
High-Z
RO
1
0
1
Z
Y
P
P
9