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| IS1U20 IS1U20 s Features 1. IrDA1.0 compatible OPIC light detector (Transmission rate : 2.4 to 115.2kbps) 2. Compact design due to OPIC (Number of parts : 1) 3. Compatible with both 5V and 3V power supplies (Operating supply voltage : 2.7 to 5.5V) 4. Visible light cut-off type 5. Recommended use in combination emitter ( GL1F20) OPIC Light Detector for Infrared Communication (IrDA1.0 Compatible) s Outline Dimensions 5.6 (Unit : mm) 3.2 4.6 R 1.8 0.85 Black resin (visible light cut-off) MAX0.6 s Applications 1. Personal computers 2. Portable information terminal equipment 3. Printers 4. Word processors IrDA : Abbreviation of the Infrared Data Association established for standardization of infrared communication specifications 3-0.45 17.9 1.0 4.0 2.4 s Absolute Maximum Ratings Parameter Supply voltage *1 Operating temperature Storage temperature *2 Soldering temperature Symbol Vcc Topr Tstg Tsol Rating 0to 6.0 - 10 to +70 - 20 to +85 260 (Ta=25C) Unit V C C C 1.27 1.27 0.4 *1 No dew condensation is allowed. *2 For MAX. 3 seconds at the position of 2 mm from the resin edge (1.0 mm thick PWB mounting) Terminal configuration s Recommended Operating Conditions Parameter Supply voltage Transmission rate Symbol Vcc BR Rating 2.7 to 5.5 2.4 to 115.2 (Ta=25C) Unit V kbps 1 Vout 2 GND 3 Vcc * OPIC (Optional IC) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signal-processing circuit integrated onto a single chip. s Electro-optical Characteristics Parameter Dissipation current High level output voltage Low level output voltage Low level pulse width Rise time Fall time MAX. reception distance Symbol ICC1 ICC2 VOH1 VOH2 VOL1 VOL2 tW1 tW2 tr tf L Conditions Vcc=5V, no input light, output terminal OPEN Vcc=3V, no input light, output terminal OPEN Vcc = 5V Vcc = 3V Vcc = 5V, IOL= 400m A, *3,4,5 Vcc = 3V, IOL= 400m A, *3,4,5 BR = 2.4kbps, *3,4,5 BR = 115.2kbps, *3,4,5 BR = 115.2kbps, *3,4,5 BR = 115.2kbps, *3,4,5 VOH , VOL , t W , t r and t f to be met at <= 15. *3, 4, 5. MIN 0.3 1 2 3 (Ta=25C ) MIN. 4.5 2.5 0.8 0.8 1 TYP. 1.0 0.7 MAX. 1.4 1.0 0.4 0.4 16.0 8.0 1.2 0.2 Unit mA mA V V V V s s s s m " 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." IS1U20 s Circuit Block Diagram Auto bias current control circuit 3 Vcc Ro= 22k 1 Vout 2 GND Amp. Photodiode Comparator *3 Input signal waveform T1 T1 T2 Transmitter radiant intensity : 40 mW/sr T1 =416.7s and T2 =78.1s at BR=2.4kbps T1 =8.68s and T2 =1.63s at BR=115.2kbps *4 Output waveform regulation tf tr VOH 90% 50% 10% tw VOL *5 Optical system Receiving distance : L *1 Transmitter IS1U20 Oscilloscope ( : Horizontal and vertical directions) *1 Transmitter shall use the light emitting diode GL550 ( p=850 to 900 nm) and be adjusted to the radiant intensity of 40mW/sr. IS1U20 s Infrared Communication Terminal System Configuration Using GL1F20/IS1U20 OA equipment body such as portable information terminal equipment OA equipment body such as portable information terminal equipment Amp Serial * parallel converter circuit Modulator/remodulator circuit Comparator Serial * parallel converter circuit Modulator/remodulator circuit Light emitting device for infrared communication (GL1F20) OPIC detecting device for infrared communication (IS1U20) Comparator Amp OPIC detecting device for infrared communication (IS1U20) Light emitting device for infrared communication (GL1F20) s General Descriptions of Standard Specifications (IrDA1.0) 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 (3/6) T Receiving waveform T 0 1 T 0 1 T=8.6 to417 s Output waveform |
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