ISL29011
Typical Performance Curves
V SUP (V DDD , V DDA) = 3V, R EXT = 499k ?
1.2
1.0
SUN
INCANDESCENT
1.2
1.0
0.8
AMBIENT
LIGHT
SENSING
HUMAN EYE RESPONSE
IR AND
PROXIMITY
0.8
HALOGEN
SENSING
0.6
0.6
0.4
0.2
FLUORESCENT
0.4
0.2
0
0
300
400
500
600 700 800
900
1000
1100
-0.2
300
400
500
600 700 800 900
1000
1100
WAVELENGTH (nm)
FIGURE 7. SPECTRUM OF FOUR LIGHT SOURCES
WAVELENGTH (nm)
FIGURE 8. SPECTRAL RESPONSE FOR AMBIENT LIGHT SENSING
AND PROXIMITY SENSING
LUMINOSITY
ANGLE 40°
50°
RADIATION PATTERN
10° 0° 10°
20°
30°
20°
30°
40°
50°
1000
900
800
700
600
500
V DD = 3V
RANGE = 1000 LUX
16-BIT ADC
HALOGEN
INCANDESCENT
65535
32768
60°
70°
60°
70°
400
300
FLUORESCENT
80°
80°
200
100
E cal =
1000 LUX
2 16
x DATA
90°
0.2 0.4 0.6 0.8
RELATIVE SENSITIVITY
90°
1.0
0
0
0
100 200 300 400 500 600 700 800 900 1000
LUX METER READING (LUX)
10000
FIGURE 9. RADIATION PATTERN
FIGURE 10. SENSITIVITY TO THREE LIGHT SOURCES
4500
1000
100
92% BRIGHTNESS PAPER
18% GRAY CARD
4000
3500
3000
2500
2000
I IRLED = 100mA
I IRLED = 50mA
I IRLED = 25mA
I IRLED = 12.5mA
1500
10
ESD BLACK FOAM
1000
500
1
0
20
40 60
80
100
0
0
10
20
30
40 50 60
70
80
90
DISTANCE (mm)
FIGURE 11. ADC OUTPUT vs DISTANCE WITH DIFFERENT OBJECTS
IN PROXIMITY SENSING
15
DISTANCE (mm)
FIGURE 12. ADC OUTPUT vs DISTANCE WITH DIFFERENT LED
CURRENT AMPLITUDES IN PROXIMITY SENSING
FN6467.5
October 10, 2012
相关PDF资料
ISL29012IROZ-EVALZ EVALUATION BOARD ISL29012IROZ
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