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NOA1312 Datasheet, PDF (5/16 Pages) ON Semiconductor – High-Precision Ambient Light Sensor
NOA1312
TYPICAL CHARACTERISTICS
100
90
5000 K Fluorescent
80
70
60
5600 K White LED
50
40
2700 K Fluorescent
30
20 Human Eye
ALS
10
2850 K Incandescent
0
200 300 400 500 600 700 800 900 1000
0
0.5
1.0
1.5
2.0
WAVELENGTH (nm)
RATIO
Figure 4. Spectral Response (Normalized)
100 k
1000
Figure 5. Light Source Dependency
(Normalized to Fluorescent Light,
Tint = 200 ms)
900
10 k
800
1k
700
600
100
Trim to 520 Counts at 100 lux
500
400
10
300
1
0.1
1
200
10
100
1k
10 k
0
50
100
150
200
250
Ev (lux)
TRIM CODES
Figure 6. Output Counts vs. Ev, 0−2000 lux
(Tint = 200 ms)
Figure 7. Output Counts and Trim Codes
(100 lux, VDD = 3.0 V, Tint = 200 ms)
−10
−20 100
0
−30
90
−40
80
−50
70
60
−60
50
−70
40
30
−80
20
10
−90
0
10 20
30
40
50
60
70
80
90
−10
−20 100
0
−30
90
−40
80
−50
70
60
−60
50
−70
40
30
−80
20
10
−90
0
10 20
30
40
50
60
70
80
90
−100
−110
100
Q
110
−100
−110
100
Q
110
−120
120 END VIEW −120
120 SIDE VIEW
−130
130 −90° 1
6 90° −130
130
654
−140
140
−150
−160−170
180
170
150
160
25
34
TOP VIEW
−140
140
−150
150
−160−170 180 170 160
−90°
90°
123
TOP VIEW
Figure 8. Output Counts vs. Angle
(End View, Normalized)
Figure 9. Output Counts vs. Angle
(Side View, Normalized)
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