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IS485 数据表(PDF) 4 Page - Sharp Corporation |
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IS485 数据表(HTML) 4 Page - Sharp Corporation |
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4 / 4 page ![]() IS485/IS486 100 200 300 400 500 600 0 0 1 2 3 4 5 6 7 8 9 10 11 12 12 5 10 20 50 0.1 0.2 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 80 60 40 20 100 +90˚ +80˚ +70˚ +50˚ +60˚ +40˚ +30˚ +20˚ +10˚ 0 - 30˚ -10˚ - 20˚ - 40˚ - 50˚ - 60˚ - 70˚ - 80˚ - 90˚ 0 Angular displacement θ 400 500 600 700 800 900 1000 1100 1200 1300 1400 0 10 20 30 40 50 60 70 80 90 100 Wavelength λ ( nm ) Fig.10 Spectral Sensitivity 0.01 µ F Output 15k Ω Amp. Voltage regulator 47 Ω 10% 90% 50% 1.5V 50% 90% 10% Input 1.5V Output Input Input Output Input 47 Ω Voltage regulator Amp. 10k Ω Output 0.01 µ F Illuminance 1 2 Fig. 7 Propagation Delay Time vs. Test Circuit for Response Time (IS485 ) Test Circuit for Response Time (IS486 ) tr = tf = 0.01 µ s Zo = 50 Ω Vcc = 5V RL VOH tf tr tPHL tPLH Vcc = 5V RL tr = tf = 0.01 µ s Zo = 50 Ω tPHL tPLH tr tf VOL VOH tf tr Fig. 8 Rise Time, Fall Time vs. Fig. 9 Sensitivity Diagram Ta= 25˚C Ta= 25˚C ( Ta = 25˚C ) Ta = 25˚C VCC =5V RL= 280Ω 1 t PLH (IS485 ) t PLH( IS486) VCC =5V q Please refer to the chapter “Precautions for Use.” t PHL (IS486 ) 2 t PHL( IS485) Illuminance E V ( lx ) Load Resistance Load resistance R L ( k Ω ) E V = 50 lx |
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