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參數(shù)資料
| 型號： | AMIS-749803 |
| 英文描述： | (I2C) Ambient Light Sensor |
| 中文描述： | （的I2C）環(huán)境光線傳感器 |
| 文件頁數(shù)： | 7/15頁 |
| 文件大?。?/td> | 366K |
| 代理商： | AMIS-749803 |
AMIS–749803: (I
2
C) Ambient Light Sensor
Table 4: Operating Characteristics, V
DD
= 3.3V, T
A
= 25°C (unless otherwise noted)
Parameter
R
e
irradiance responsivity
λ
p (see Figure 3)
Fluorescent light source:
Ev = 100lux (see Figure 4)
R
v
illuminance responsivity
Fluorescent light source:
Ev = 1000lux (see Figure 4)
Test Conditions
Min.
Typ.
550
Max.
Units
nM
109
1275
Counts
Incandescent light source:
Ev = 100lux
(see Figure 5)
125
R
v
illuminance responsivity
Incandescent light source:
Ev = 1000lux (see Figure 5)
Sun light direct:
100 Ev = Lux (see Figure 6)
Sun light direct:
1000 Ev = Lux (see Figure 6)
Sun light shade (w/attenuating filter):
Ev = 100lux (see Figure 7)
Sun light shade (w/attenuating filter):
Ev = 1000lux (see Figure 7)
1120
Counts
100
R
v
illuminance responsivity
995
Counts
R
v
illuminance responsivity
37
R
v
illuminance responsivity
375
Counts
Dark current
Ev = 0lux (see Figure 16)
To be
provided
Counts
7.0 Device Operation
This device employs a sensitive photo diode which is fabricated in AMIS C3 standard CMOS process technology. The major
components of this sensor are as shown in Figure 10. The photons which are to be detected are passed through an AMIS proprietary
color filter. This color filter is used to limit all extraneous photons and thus perform a band pass filter operation on the incident wave
front. Thus this filter transmits only those photons in the visible spectrum which are primarily detected by human eye. The photo
response of this sensor is as shown in Figure 3.
Figure 10: Block Diagram
ADC
Control
I
2
C serial
interface
I2CDATA
I2CCLK
h
ν
16-bits
749803 (I2C)
7
AMI Semiconductor
– July 2006, M-20599-001
www.amis.com
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