Datasheet > FSA8108

FSA8108

更新时间： 2024-11-24 12:23:27

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关
页数	文件大小	规格书
5页	753K
描述
Audio Jack Detection and Configuration Switch, Supports Volume Up/Down & Send/End Keys

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数据手册

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FSA8108 数据手册

August 2012

FSA8108

Audio Jack Detection and Configuration Switch, Supports

Volume Up/Down & Send/End Keys

Features

Description

Audio Plug Connection

Volume Up/Down Key Press

Send/End Key Press

The FSA8108 is an audio jack detection switch for 3- or 4-

pole accessories that detects the audio plug connection. The

detection circuit monitors the microphone bias voltage to

detect a volume up/down or send/end key press. For system

flexibility, the FSA8108 features an I²C port with registers to

allow programmability of AC timing specifications.

Detection

V_DD

2.7 to 4.5V

1.6V to V_DD

V_IO

Detects 3- or 4-Pole Audio Accessories

THD (MIC)

0.01% Typical

Removes Audio Jack Pop-and-Click Caused by

MIC Bias

LDO Output for MIC Bias

Voltage

2.4V

Detects Key Press: Volume Up/Down, Send/End

Stuck Send/End Key Recovery

ESD (IEC 61000-4-2)

Operating Temperature

Package

15kV

-40°C to 85°C

12-Ball WLCSP

LDO Output for MIC Bias Voltage

Top Mark

Related Resources

Ordering Information

FSA8108BUCX

. For samples and questions, please contact:

Analog.Switch@fairchildsemi.com.

Applications

Cellular Phones, Smart Phones

MP3 and PMP (Portable Media Player)

Figure 1.

Typical Application Diagram

FSA8108 • Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5

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