Datasheet > SI1120_10

SI1120_10

更新时间： 2024-11-25 09:26:15

品牌	Logo	应用领域
芯科 - SILICON		传感器输出元件
页数	文件大小	规格书
20页	187K
描述
PROXIMITY/AMBIENT LIGHT SENSOR WITH PWM OUTPUT

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中文翻译

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SI1120_10 数据手册

Si1120

PROXIMITY/AMBIENT LIGHT SENSOR WITH PWM OUTPUT

Features

Pin Assignments

 Typically 50 cm meter proximity  High EMI immunity without

range with single pulse

shielded packaging

Si1120

ODFN

 Seven precision optical

 Power supply: 2.2–3.7 V

measurement modes:

 Operating temperature range:

3 proximity ranges

3 dc ambient ranges

1 calibration mode

–40 to +85 °C

PRX

VSS

 Typical 10 µA current

TXGD

consumption

TXO

STX

 Low-noise ambient cancelling

circuit allows maximum

sensitivity with 8–12 bit resolution

 Programmable 400/50 mA LED

VDD

constant current driver output

 Allows independent LED supply

 ALS works in direct sunlight

voltage

(100 klux)

U.S. Patent #5,864,591

U.S. Patent #6,198,118

Other patents pending

 Small outline 3 x 3 mm (ODFN)

 Minimum reflectance sensitivity

<1 µW/cm

Applications

 Handsets

 Notebooks/PCs

 Touchless switches

 Occupancy sensors

 Consumer electronics

 Industrial automation

 Display backlighting control

 Photo-interrupter

Description

The Si1120 is a low-power, reflectance-based proximity and ambient light

sensor with advanced analog signal processing and analog PWM output.

It includes an integrated differential photodiode, signal processor, and

LED driver. Proximity sensing is based on the measurement of reflected

light from an external, optically-isolated, strobed LED. A separate visible

light photodiode is used for ambient light sensing. The standard package

for the Si1120 is an 8-pin ODFN.

Rev. 1.0 8/10

Si1120

12 3 4 5 6 7...20

中文翻译

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