GL1F20 GL1F20 Infrared Communication (IrDA1.0 Compatible) InfraredEmitting Diode ■ Features ■ Outline Dimensions 1. IrDA1.0 compatible infrared emitting diode (Transmission rate : 2.4 to 115.2kbps) (Unit : mm) 2.2 2. Built-in infrared emitting diode circuit 3. Recommended use in combination with detector (IS1U20) 3.6 5.6 R 1.4 Transparent resin Detector center 2.5 4.0 MAX. 0.6 1.0 ■ Applications 3. Printers 4. Word processors 17.9 1. Personal computers 2. Portable information terminal equipment 3-0.45 0.4 IrDA : Abbreviation of the Infrared Data Association established for standardization of infrared communication specifications ■ Absolute Maximum Ratings Parameter Forward current *1 Peak forward current Operating temperature Storage temperature *2 Soldering temperature 1.27 1 2 3 MIN 0.3 1.27 Base (Ta=25˚C) Symbol IF IFM T opr T stg T sol Rating 50 400 - 10 to + 70 - 20 to + 85 260 3 Unit mA mA ˚C ˚C ˚C Terminal configuration 1 Base 2 Emitter 3 Anode 2 1 *1 Pulse width 78.1 µ s, Duty ratio=3/16 *2 For MAX. 3 seconds at the position of 2 mm from the resin edge ■ Electro-optical Characteristics Parameter Driving voltage High level input voltage Low level input voltage Peak emission wavelength Radiant intensity Light pulse width Light rise time Light fall time Input current Half intensity wavelength Half intensity angle (Ta=25 ˚C) Symbol V CC V IH VIL λp IE tW tr tf IIH ∆λ ∆θ Conditions IF = 20mA VCC = 5V,RL = 7.5Ω Vin = 4.5V twin= 1.63 µs,Duty ratio : 3/16 φ <=15˚,*3 Vin = 4.5V IF = 20mA IF = 20mA MIN. 4.75 4.5 850 40 1.41 1.0 - TYP. 870 1.6 0.23 0.17 40 ± 20 MAX. 5.25 VCC 0.4 900 350 2.71 0.6 0.6 3.0 - Unit V V V nm mW/sr µs µs µs mA nm *3 Direction of mechanical axis of the lens portion of the element : φ =0˚ “ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.” GL1F20 Fig. 1 Peak Forward Current vs. Ambient Temperature 500 400 Peak forward current I FM (mA) Pulse width 78.1 µ s Duty ratio= 3/16 300 200 100 0 - 25 - 10 0 25 50 70 75 100 Ambient temperature Ta (˚C) ■ Infrared Communication Terminal System Configuration Using GL1F20/IS1U20 OA equipment body such as portable information terminal equipment Light emitting device for infrared communication (GL1F20) Comparator Comparator Serial • parallel converter circuit Modulator/remoldulator circuit Serial• parallel converter circuit Amp Modulator/remodulator circuit OA equipment body such as portable information terminal equipment OPIC detecting device for infrared communication (IS1U20) Amp OPIC detecting device for infrared communication (IS1U20) Light emitting device for infrared communication (GL1F20) ■ General Descriptions of IrDA1.0 System (3/16) T Transmission rate : 2.4k to 115.2kbps Modulation system : SIR Receiving distance : 1 m Transmitting wavelength : 850 to 900 nm Receiving waveform : As shown in the right drawing Output waveform : As shown in the right drawing Receiving waveform 0 T 1 0 1 T T =8.6 to 417 µ s Output waveform ● Please refer to the chapter "Precautions for Use". (Page 78 to 93)