Datasheet > SFH7773

SFH7773

更新时间： 2024-10-01 12:52:23

品牌	Logo	应用领域
欧司朗 - OSRAM		传感器
页数	文件大小	规格书
23页	883K
描述
(IR-LED Proximity Sensor Ambient Light Sensor)

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SFH7773 数据手册

SFH 7773

(IR-LED + Proximity Sensor + Ambient Light Sensor)

Application note

preliminary

1. Introduction

The SFH 7773 combines a digital ambient

light sensor and a proximity sensor (emitter

+ detector) within one package. Additionally

the sensor provides an I²C-bus interface and

an interrupt pin to connect it to an e.g.

microcontroller.

This application note describes the basic

technical features and the components

operation, allowing the user to achieve the

full functionality of the sensor. At the end a

simple software code illustrates an example

for the implementation of the SFH 7773 into

a mobile phone environment.

Fig. 1: Photography and orientation of the

SFH 7773.

Please note that this guide is only a brief

introduction. For more detailed information

and the latest products and updates please

visit www.osram-os.com or contact your

local sales office to get technical assistance

during your design-in phase.

3. The SFH 7773

The SFH 7773 (see Fig. 1) consists of an

850 nm infrared (IR) LED and an ultra-low

power ASIC which performs the signal

processing and provides the I²C-bus

interface as well as an interrupt alert

function. Additionally the ASIC contains the

two photodiodes for proximity resp. ambient

light sensing. The functional block diagram

can be found in Fig. 2. The pinning of the

devices is stated in Tab. 1. The key features

of the SFH 7773 include:

2. Applications

Typical application areas are mobile

phones, PDAs, notebooks, cameras and

other consumer products. Common tasks for

the integrated ambient light sensor are

display brightness adjustments, whereas the

proximity sensor is usually employed to

detect objects and motions. This single

component integrates several distinct

functionalities and greatly simplifies the

design-in process in consumer as well as

industrial applications. The dark black look

of the SFH 7773 makes it ideally suitable for

implementation behind a cover glass.

Proximity Sensor (PS)

- detection-range up to 150 mm

- optimized for the integrated 850nm emitter

- superior ambient light suppression

(> 50 klx)

- immunity to crosstalk

- fast access to PS signal

- high power (stacked) emitter version for

extended detection range are available

on request

The ultra-low power consumption of the

SFH 7773 makes the devices especially

suited for mobile applications, where

conservation of battery power is a critical

point.

Ambient Light Sensor (ALS)

- 0.03 lx – 65 000 lx

- excellent linearity

December 12, 2011

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与SFH7773相关器件

型号	品牌	获取价格	描述	数据表
SFH-7773	OSRAM	获取价格	Umgebungslicht- und NÃ¤herungssensor mit IR E
SFH7776	OSRAM	获取价格	Ambient Light and Proximity Sensor with Integrated 850nm IR Emitter
SFH-7776	OSRAM	获取价格	Ambient Light and Proximity Sensor with Integrated 850nm IR Emitter
SFH7776_13	OSRAM	获取价格	Ambient Light and Proximity Sensor with Integrated 850nm IR Emitter
SFH7779	OSRAM	获取价格	Ambient Light and Proximity Sensor with Integrated 940nm IR Emitter
SFH-7779	OSRAM	获取价格	Ambient Light and Proximity Sensor with Integrated 940nm IR Emitter
SFH800	INFINEON	获取价格	Transmitter, 50Mbps, Through Hole Mount,
SFH800/V	INFINEON	获取价格	Transmitter, 50Mbps, Through Hole Mount,
SFH870	INFINEON	获取价格	Optoelectronic Device
SFH870/F170	INFINEON	获取价格	Optoelectronic Device

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