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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 232kB) Download   E-Mail

Description

The MAX3130/MAX3131 combine an IrDA 1.2 compatible 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 ambient 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 signals to and from the external UART, allowing IrDA communication 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 transmitter 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 single UART for both infrared and RS-232 communication. The infrared transmitter input and infrared receiver output 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 components: four small 0.1µF capacitors, a photodiode, an infrared LED, and a current-setting resistor.

Key Features		Applications/Uses
Integrated RS-232 and IrDA in Single 28-Pin SSOP Package 370µA Supply Current IrDA 1.2 Compatible: 2.4kbps to 115kbps Data Rate On-Board IR Encoder/Decoder Allows Use of Non-IrDA UARTs +3.0V to +5.5V Single-Supply Operation Meet EIA/TIA-232 Specifications Down to +3V 200mA, High-Current Infrared LED Drive 1µA Low-Power Shutdown with RS-232 Receivers Active		Battery-Powered Applications Cell Phones Handheld Equipment IrDA Applications Palmtop Computers PDAs and Other Handheld Devices Peripherals

Diagram

Pin Configuration

Application Notes

Application Note 631: Circuit Enables PCs to Communicate via IrDA - MAX3131 Application Note 3024: IrDA and RS-232: A Match Made in Silicon - MAX3130, MAX3131

Design Guides

Interface (PDF)

Reliability Reports

Show FIT data for: MAX3130 MAX3131 Request Reliability Report for: MAX3130 MAX3131

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-14 of 14

MAX3130	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3130CAI+T			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX3130CAI+			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3130CAI			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3130CAI-T			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX3130EAI			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3130EAI-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX3130EAI+			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3130EAI+T			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3131	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3131EAI+			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3131EAI+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX3131CAI			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX3131CAI-T			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX3131EAI			Active	SSOP;28 pin;81.6 mm² Outline Drawing: 21-0056 (PDF) Land Pattern: 90-0095 (PDF) Use pkgcode/variation: A28M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3131EAI-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes and Comments

IrDA 1.2 compatible, 200 mA LED drive capability, switchable RS-232 or IrDA interface (MAX3130) IrDA 1.2 compatible, 200 mA LED drive capability, separate RS-232 and IrDA interface (MAX3131)

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