MAX3131EAI+ Maxim Integrated Products, MAX3131EAI+ Datasheet - Page 5

• Manufacturer Part Number: MAX3131EAI+
• Description: IC TXRX W/RS232 28-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3131EAI+

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3V to 5.5V, IrDA Infrared Transceiver with
Integrated RS-232 Interface
(V
CC
= AV
CC
2V/div
2V/div
V
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
4.0
3.5
3.0
2.5
2.0
1.5
1.0
CC
= 3.3V, GND = AGND = PGND, C1–C4 = 0.1µF, R
18
16
14
12
10
8
6
4
2
0
= 3.3V, 115.2kbps AT 1cm DISTANCE
RXD OUTPUT PULSE WIDTH vs. DISTANCE
0
0
RS-232 TRANSMITTER SLEW RATE
_______________________________________________________________________________________
1000
20
+SLEW
vs. LOAD CAPACITANCE
vs. INFRARED INPUT
LOAD CAPACITANCE (pF)
TRANSMITTER POWER = 200mW/sr
INPUT PULSE WIDTH = 1.63 s
TEMIC BPV22NF
V
CC
RXD OUTPUT
(115.2 kbps)
DISTANCE (cm)
2000
= 3.3V
40
2 s/div
-SLEW
3000
60
4000
80
MAX3130 toc11
Typical Operating Characteristics (continued)
5000
100
RXD
OUTPUT
INFRARED
INPUT
L
= 3kΩ, T
A
= +25°C, unless otherwise noted.)
2V/div
2V/div
V
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
CC
= 3.3V, 2400bps AT 1cm DISTANCE
40
35
30
25
20
15
10
-1
-2
-3
-4
-5
-6
5
0
6
5
4
3
2
1
0
SUPPLY CURRENT vs. LOAD CAPACITANCE
0
0
1 TRANSMITTER DRIVEN ONLY
1 TRANSMITTER AT 235kbps
1 TRANSMITTER AT 15kbps
TRANSMITTER OUTPUT VOLTAGE
vs. INFRARED INPUT
1000
1000
(RS-232 TRANSMITTING)
vs. LOAD CAPACITANCE
RXD OUTPUT
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
100 s/div
2000
2000
235kbps
120kbps
20kbps
3000
3000
MAX3130 toc12
V
V
4000
4000
OUT
OUT
+
-
RXD
OUTPUT
INFRARED
INPUT
5000
5000
5