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MAX3120
Low-Profile 3V, 120µA IrDA Infrared Transceiver


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Description
FULL DATA SHEET (PDF, 160kB)
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The MAX3120 IrDA 1.2-compatible infrared transceiver is optimized for battery-powered, space-constrained applications. It consumes only 120µA while supporting data rates up to 115kbps over a wide 3V to 5.5V operating range, and features a 10nA shutdown mode to further extend battery life.

The MAX3120 reduces the space required for IrDA applications by requiring a minimum of external components: photodiode, infrared LED, and current-setting resistor. Optical components are external to allow maximum flexibility in PC board design. The MAX3120 is available in 8-pin µMAX and SO packages. The µMAX package consumes half the board space of an 8-pin SO.

Key Features   Applications/Uses
  • IrDA 1.2 Compatible: 2.4kbps to 115.2kbps
  • +3V to +5.5V Single-Supply Operation
  • Flexible Optics Selection and Layout
  • 120µA Supply Current
  • 10nA Shutdown Supply Current
  • 200mA, High-Current Infrared LED Drive

 
  • Cell Phones
  • Handheld Equipment
  • IrDA Applications
  • Palmtop Computers
  • PDAs and Other Handheld Devices
  • Peripherals

    Key Specifications:   Appletalk and IrDA
    Part Number Functions Supply Voltage (V) Max. Data Rate (kbps) Shutdown µP Interface Max. Operating Supply Current (mA) Shutdown-Mode Supply Current (µA) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX3120 
    IrDA Transceiver
    3.0 to 5.5 115.2 Yes TXD/RXD 0.2 20 Yes SOIC/8
    uMAX/8
    16 $1.79 @ 1k
    See All Appletalk and IrDA (4)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX3120: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-1390; Rev 0; 1998-10-01
    This page last modified: 2007-06-04



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