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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)： | 1/15頁 |
| 文件大?。?/td> | 366K |
| 代理商： | AMIS-749803 |
AMIS–749803: (I
2
C) Ambient Light Sensor
Data Sheet
1.0 General Description
The AMIS-74980x is a wide dynamic range family of ambient light sensors (ALS) with an analog or digital output. There are several
versions of the ALS with analog output; one with 10uA current output at 1000lux all the way to 1mA at 1000lux. The digital output
version has a built-in 16-bit ADC with a 2-wire SMBus or I
C digital interface. The sensor employs AMI Semiconductor’s proprietary
CMOS image sensing technology which provides low noise and high dynamic range output signals and a light response similar to the
response of the human eye.
This data sheet provides details of the DC characteristics, AC characteristics and programming information of AMIS-749803 (I
2
C) ALS.
2.0 Key Features
Senses ambient light and provides an output count proportional to the ambient light
Human eye type of spectral response
Standard CMOS process technology
Low power consumption
Linear response over the full operating range
Senses intensity of ambient light from ~0lux to well over 100,000lux
Built-in programmable integration times of 400ms, 200ms and 100ms
Does not require any external components
Built-in 16-bit ADC
I
2
C serial port communication
o
Standard mode – 100kHz
o
Fast mode – 400kHz
Provides comfortable levels of display depending on the viewing environment
Saves display power in applications such as:
Cell phone
PDA
MP3 player
GPS
Video recorder
3.0 Pin Out
Table 1: Pin Out
Pin Name
Pin No.
I, O or IO
Function
Comments
I2CCLK
3
I
This is the external I2C clock
that is provided by the I2C
master
This bi-directional data signal
is used for communication
between this device and the
I2C master
This pin is the power pin
This pin is the GND pin
I2CDATA
4
IO
VDD
VSS
5
1
I
I
1
AMI Semiconductor
– July 2006, M-20599-001
www.amis.com
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