MAX3462 MAXIM [Maxim Integrated Products], MAX3462 Datasheet - Page 6

• Manufacturer Part Number: MAX3462
• Description: +5V, Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers
• Manufacturer: MAXIM [Maxim Integrated Products]

+5V, Fail-Safe, 20Mbps, Profibus RS-485/
RS-422 Transceivers
6
(V
MAX3460/
RO
MAX3461
CC
DI
Y, Z
_______________________________________________________________________________________
6, 7
0
0
0
= +5V, T
10
11
12
13
14
—
—
1
2
3
4
5
8
9
FULL DUPLEX
A
DRIVER AND RECEIVER
PROPAGATION DELAYS
= +25°C, unless otherwise noted.)
MAX3462
PIN
—
—
—
—
—
—
—
2
3
4
5
6
7
8
1
10ns/div
MAX3463/
MAX3464
DUPLEX
HALF
MAX3460-64 toc13
—
—
—
—
—
—
—
1
2
3
4
5
8
7
6
5V/div
2V/div
5V/div
NAME
SHDN
GND
RXP
V
TXP
RO
DE
RE
DI
Y
Z
B
A
CC
B
A
Typical Operating Characteristics (continued)
Y, Z
DE
Shutdown. Drive SHDN high to enter low-power shutdown mode.
Receiver Output. When RE is low and (A - B) ≥ -50mV, RO is high; if (A - B) ≤
-200mV, RO is low.
Receiver Output Enable. Drive RE low to enable RO; RO is high impedance
when RE is high. Drive RE high and DE low to enter low-power shutdown mode.
Driver Output Enable. Drive DE high to enable driver output. These outputs
are high impedance when DE is low. Drive RE high and DE low to enter low-
power shutdown mode.
Driver Input. With DE high, a low on DI forces the noninverting output low and
the inverting output high. Similarly, a high on DI forces the noninverting output
high and the inverting output low.
Ground
Transmitter Phase. Connect TXP to GND, or leave unconnected for normal
transmitter phase/polarity. Connect TXP to V
phase/polarity. TXP has an internal 15µA pulldown.
Noninverting Driver Output
Inverting Driver Output
Inverting Receiver Input
Noninverting Receiver Input
Receiver Phase. Connect RXP to GND, or leave unconnected for normal
receiver phase/polarity. Connect RXP to V
phase/polarity. RXP has an internal 15µA pulldown.
Positive Supply: +4.75V ≤ V
capacitor.
Inverting Receiver Input and Inverting Driver Output
Noninverting Receiver Input and Noninverting Driver Output
0
0
ENABLE RESPONSE TIME
20ns/div
CC
MAX3460-64 toc14
≤ +5.25V. Bypass V
FUNCTION
1V/div
5V/div
CC
CC
to invert the receiver
to invert the transmitter
CC
Pin Description
to GND with a 0.1µF
EYE DIAGRAM
10ns/div