MAX3030ECUE+ Maxim Integrated Products, MAX3030ECUE+ Datasheet - Page 10

• Manufacturer Part Number: MAX3030ECUE+
• Description: IC RS-422 TRANSMIT QUAD 16TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Transmitterr

Specifications of MAX3030ECUE+

• Number Of Drivers/receivers: 4/0
• Protocol: RS422
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

sents the minimum parasitic capacitance that would
exist in a typical application. In most cases, more
capacitance exists in the system and reduces the mag-
nitude of the glitch. During a “hot-swap” event when the
driver is connected to the line and is powered up, the
driver must not cause the differential signal to drop
below 200mV (Figures 12 and 13).
The MAX3030E–MAX3033E family has two enable-func-
tional versions.
The MAX3030E/MAX3031E are compatible with
26LS31, where the two enable signals control all four
transmitters (global enable).
±15kV ESD-Protected, 3.3V Quad
RS-422 Transmitters
Figure 12. Differential Power-Up Glitch (0.1V/µs)
Table 1. MAX3030E/MAX3031E Transmitter Controls
Table 2. MAX3032E/MAX3033E Transmitter Controls
10
EN1&2
______________________________________________________________________________________
EN
0
0
1
1
0
0
1
1
Operation of Enable Pins
EN3&4
EN
0
1
0
1
0
1
0
1
4µs/div
High-Z
Active
Active
Active
High-Z
High-Z
Active
Active
TX1
TX1
V
1V/div
DO_+ - DO_-
DO_+
DO_-
CC
High-Z
Active
Active
Active
High-Z
High-Z
Active
Active
TX2
TX2
The MAX3032E/MAX3033E are compatible with the
SN75174. EN1&2 controls transmitters 1 and 2, and EN
3&4 controls transmitters 3 and 4 (dual enable).
The MAX3030E–MAX3033E offer optimum performance
when used with the MAX3094E/MAX3096 3.3V quad
differential line receivers. Figure 14 shows a typical RS-
422 connection for transmitting and receiving data.
Figure 13. Differential Power-Up Glitch (1V/µs)
High-Z
Active
Active
Active
High-Z
High-Z
Active
Active
TX3
TX3
High-Z
Active
Active
Active
High-Z
High-Z
Active
Active
TX4
Typical Applications
TX4
1.0µs/div
All transmitters active
All transmitters disabled
All transmitters active
All transmitters active
All transmitters disabled
Tx 3 and 4 active
Tx 1 and 2 active
All transmitters active
MODE
MODE
V
1V/div
DO_+ - DO_-
DO_+
DO_-
CC