MAX3131EAI Maxim Integrated Products, MAX3131EAI Datasheet - Page 4

• Manufacturer Part Number: MAX3131EAI
• Description: IC TXRX RS2332 IRDA IR 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: Contains lead / RoHS non-compliant

3V to 5.5V, IrDA Infrared Transceiver with
Integrated RS-232 Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
values are at T
Note 1: C1–C4 = 0.1µF, tested at +3.3V ±10%. C1 = 0.047µF, C2–C4 = 0.33µF, tested at +5.0V ±10%.
Note 2: All supply current measurements are made under no-load condition on all outputs, and all input voltages are at V
Note 3: For a compliant IrDA input signal where the data rate is within the supported data rate for the IR receive mode: rise/fall
(V
4
Transition-Region Slew Rate
Transmitter Enable Time
CC
CC
380
360
340
320
300
280
260
240
220
200
_______________________________________________________________________________________
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
= AV
= AV
0
-40
-40
SUPPLY CURRENT vs. TEMPERATURE
times are less than 600ns and pulse widths are between 1.41µs and 3/16 of the baud rate.
CC
CC
-20
LED DRIVER ON-RESISTANCE
-20
PARAMETER
= 3.3V, GND = AGND = PGND, C1–C4 = 0.1µF, R
= 3.0V to 5.5V, GND = AGND = PGND, C1–C4 = 0.1µF (Note 1), T
V
A
CC
vs. TEMPERATURE
= +25°C and V
0
= 3.3V
TEMPERATURE (°C)
TEMPERATURE (°C)
0
20
V
CC
20
= 3.3V or 5V
40
V
CC
40
60
I
= 5V
LEDC
CC
= 200mA
80
= AV
80
100
100
CC
V
7kΩ, measured from
+3V to -3V or -3V to +3V,
T
Delay until transmitter outputs are valid
A
CC
= 3.3V.)
= +25°C
= 3.3V, R
600
500
400
300
200
100
150
140
130
120
110
100
0
90
100
-40
LEDC VOLTAGE vs. LEDC CURRENT
L
150
-20
= 3kΩ to
ANALOG SUPPLY CURRENT
AV
CONDITIONS
V
CC
CC
vs. TEMPERATURE
LEDC CURRENT (mA)
200
0
= 5V
TEMPERATURE (°C)
= 3.3V
L
= 3kΩ, T
20
250
AV
C
C
L
L
CC
Typical Operating Characteristics
PULSED AT
20% DUTY CYCLE
40
= 150pF to 1000pF
= 150pF to 2500pF
= 3.3V
300
A
V
CC
60
= +25°C, unless otherwise noted.)
= 5V
350
80
A
400
= T
100
MIN
to T
100
500
400
300
200
100
80
60
40
20
0
0
MAX
3.0
0
MIN
6
4
, unless otherwise noted. Typical
AMBIENT PHOTODIODE CURRENT
REJECTION vs. SUPPLY VOLTAGE
RXD OUTPUT PULSE WIDTH
20
vs. DISTANCE (2400bps)
3.5
TRANSMITTER POWER = 200mW/sr
INPUT PULSE WIDTH = 78 s
TEMIC BPV22NF
V
CC
TYP
SUPPLY VOLTAGE (V)
100
DISTANCE (cm)
= 3.3V
40
4.0
MAX
60
4.5
30
30
CC
80
5.0
or GND.
UNITS
V/µs
µs
100
5.5