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MAX3131EAI+T

Description
RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size218KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

MAX3131EAI+T Overview

RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int

MAX3131EAI+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSSOP
package instruction5.30 MM, 0.65 MM PITCH, SSOP-28
Contacts28
Reach Compliance Codecompli
Interface integrated circuit typeINTERFACE CIRCUIT
JESD-30 codeR-PDSO-G28
JESD-609 codee3
length10.2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals28
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.99 mm
Maximum supply voltage5.5 V
Minimum supply voltage3 V
Nominal supply voltage3.3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width5.29 mm
19-1402; Rev 0; 11/98
3V to 5.5V, IrDA Infrared Transceiver with
Integrated RS-232 Interface
General Description
The MAX3130/MAX3131 combine an IrDA 1.2 compati-
ble infrared transceiver with an RS-232 interface—all in
a single 3V-powered hybrid microcircuit. The infrared
transceiver supports IrDA data rates of 2.4kbps to
115kbps. The infrared receive channel provides a high-
gain/low-noise PIN-diode amplifier with 100µA of ambi-
ent photodiode current rejection at a +3V supply. A
high-power LED driver capable of sinking 200mA is
included in the infrared transmit path. The on-board
encoder/decoder (ENDEC) compresses/stretches sig-
nals to and from the external UART, allowing IrDA com-
munication even with non-IrDA UARTs.
A 2-driver/2-receiver RS-232 transceiver supports data
rates up to 120kbps. A proprietary, high-efficiency, dual
charge-pump power supply and a low-dropout trans-
mitter combine to deliver true RS-232 performance from
a single +3.0V to +5.5V supply. Selectable shutdown
for IR and RS-232 circuitry reduces supply current to
1µA.
The MAX3130 is optimized for applications using a sin-
gle UART for both infrared and RS-232 communication.
The infrared transmitter input and infrared receiver out-
put are multiplexed with one RS-232 transmitter input
and one RS-232 receiver output, respectively. The
MAX3131’s IrDA transceiver and RS-232 transceivers
are separate and have their own data inputs and outputs.
Both these devices require a minimum of external com-
ponents: four small 0.1µF capacitors, a photodiode, an
infrared LED, and a current-setting resistor.
Features
o
Integrated RS-232 and IrDA in Single 28-Pin SSOP
Package
o
370µA Supply Current
o
IrDA 1.2 Compatible: 2.4kbps to 115kbps
Data Rate
o
On-Board IR Encoder/Decoder Allows Use of
Non-IrDA UARTs
o
+3.0V to +5.5V Single-Supply Operation
o
Meet EIA/TIA-232 Specifications Down to +3V
o
200mA, High-Current Infrared LED Drive
o
1µA Low-Power Shutdown with RS-232
Receivers Active
MAX3130/MAX3131
Ordering Information
PART
MAX3130CAI
MAX3130EAI
MAX3131CAI
MAX3131EAI
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
28 SSOP
28 SSOP
28 SSOP
28 SSOP
Pin Configuration
TOP VIEW
EDGEDET (RXD) 1
28 R2OUT
27 R2IN
26 T2OUT
25 RSSD
24 V-
Applications
Personal Digital Assistants (PDAs)
Palmtop Computers
Battery-Powered Systems
Hand-Held Equipment
Peripherals
IrDA Applications
Cellular Phones
T1IN 2
T2IN 3
IRMODE (TXD) 4
R1OUT 5
R1IN 6
T1OUT 7
BAUD16 8
GND 9
V
CC
10
N.C. 11
AV
CC
12
AGND 13
PINC 14
MAX3130
MAX3131
23 C2-
22 C2+
21 C1-
20 C1+
19 V+
18 N.C.
17 LEDC
16 PGND
15 IRSD
( ) ARE FOR MAX3131
SSOP
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.

MAX3131EAI+T Related Products

MAX3131EAI+T MAX3131EAI+ MAX3130EAI+ MAX3130CAI+T MAX3130CAI+
Description RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int RS-232 interface IC 3-5.5V irda infrared tcvr w/RS-232 int
Is it lead-free? Lead free Lead free Lead free Lead free Lead free
Is it Rohs certified? conform to conform to conform to conform to conform to
Parts packaging code SSOP SSOP SSOP SSOP SSOP
package instruction 5.30 MM, 0.65 MM PITCH, SSOP-28 SSOP, SSOP, 5.30 MM, 0.65 MM PITCH, SSOP-28 SSOP,
Contacts 28 28 28 28 28
Reach Compliance Code compli compli compli compli compliant
Interface integrated circuit type INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT
JESD-30 code R-PDSO-G28 R-PDSO-G28 R-PDSO-G28 R-PDSO-G28 R-PDSO-G28
JESD-609 code e3 e3 e3 e3 e3
length 10.2 mm 10.2 mm 10.2 mm 10.2 mm 10.2 mm
Humidity sensitivity level 1 1 1 1 1
Number of functions 1 1 1 1 1
Number of terminals 28 28 28 28 28
Maximum operating temperature 85 °C 85 °C 85 °C 70 °C 70 °C
Minimum operating temperature -40 °C -40 °C -40 °C - -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP SSOP SSOP SSOP SSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.99 mm 1.99 mm 1.99 mm 1.99 mm 1.99 mm
Maximum supply voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 3 V 3 V 3 V 3 V 3 V
Nominal supply voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
surface mount YES YES YES YES YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm
Terminal location DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED 30 NOT SPECIFIED 30
width 5.29 mm 5.29 mm 5.29 mm 5.29 mm 5.29 mm
Maker Maxim - Maxim Maxim Maxim
ECCN code - EAR99 EAR99 - EAR99
Base Number Matches - 1 1 - 1
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