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Maxim产品 - MAX3130介绍

MAX3130 - 3V至5.5V、IrDA红外收发器，集成的RS-232接口

MAX3130是Maxim美信半导体公司的一款驱动器-接收器产品，MAX3130是3V至5.5V、IrDA红外收发器，集成的RS-232接口，本站介绍了MAX3130的封装应用图解、特点和优点、功能等，并给出了与MAX3130相关的Maxim元器件型号供参考。

MAX3130 - 3V至5.5V、IrDA红外收发器，集成的RS-232接口 - 驱动器-接收器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

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.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 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
    • 热门应用
  • 电池供电应用
  • 蜂窝电话
  • 手持式装置
  • IrDA应用
  • 掌上电脑
  • PDA及其它手持设备
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