Datasheet > FSA8058

FSA8058

更新时间： 2024-10-02 12:31:07

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关
页数	文件大小	规格书
8页	831K
描述
Audio Jack Detection and Configuration Switch with Moisture Sensing

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FSA8058 数据手册

July 2013

FSA8058

Audio Jack Detection and Configuration Switch with

Moisture Sensing

Description

Features

The FSA8058 is an audio jack detection switch for

3-pole and 4-pole accessories. The FSA8058 features

moisture sensing, which prevents false positive

detection of accessories in the audio jack. The FSA8058

also features an integrated MIC switch that allows a

processor to configure attached accessories. The

architecture is designed to allow common third-party

headphones to be used for listening to music from

mobile handsets, personal media players, and portable

peripheral devices.

Accessory Plug-In

3-Pole or 4-Pole Audio Jack

Send/End Key Pressed

Moisture

Detection

Switch Type

V_DD

MIC

2.5 V to 4.5 V

1.6 to V_DD

V_IO

THD (MIC)

ESD (Air Gap)

0.01% Typical

15 kV

. Prevents False Detection of Accessories in the Audio

Jack when Moisture is Present

Operating

Temperature

-40°C to 85°C

. Removes Audio Jack Pop and Click Caused by

MIC Bias

10-Lead UMLP, 1.4 mm ×

1.8 mm × 0.5 mm, 0.4 mm Pitch

Package

. Detects Audio Jack Accessories:

- Standard Headphones

- Send / End Button Presses

Top Mark

FSA8058

Ordering Information

FSA8058UMX

. Integrates a MIC Switch for 4-Pole Configuration

Applications

Related Resources

3.5 mm and 2.5 mm Audio Jacks

. FSA8058 Evaluation Board

Cellular Phones, Smart Phones

MP3 and PMP

. For samples and questions, please contact:

Analog.Switch@fairchildsemi.com

GPIO Interface

FSA8058

Jack Detect

Baseband

CODEC

Insert and

Moisture

Detection

Logic

Audio Jack

Key Detection

MIC

MIC- Send/End Key

Figure 1.

System Diagram

www.fairchildsemi.com

FSA8058 • Rev. 1.0.0

12 3 4 5 6 7 8

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