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FSA8058 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. FSA8058
Description  Audio Jack Detection and Configuration Switch with Moisture Sensing
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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FSA8058 Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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July 2013
© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA805
8 • Rev. 1.0.0
FSA8058
Audio Jack Detection and Configuration Switch with
Moisture Sensing
Features
Detection
Accessory Plug-In
3-Pole or 4-Pole Audio Jack
Send/End Key Pressed
Moisture
Switch Type
MIC
VDD
2.5 V to 4.5 V
VIO
1.6 to VDD
THD (MIC)
0.01% Typical
ESD (Air Gap)
15 kV
Operating
Temperature
-40°C to 85°C
Package
10-Lead UMLP, 1.4 mm ×
1.8 mm × 0.5 mm, 0.4 mm Pitch
Top Mark
FSA8058
NC
Ordering Information
FSA8058UMX
Applications
3.5 mm and 2.5 mm Audio Jacks
Cellular Phones, Smart Phones
MP3 and PMP
Description
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.
Prevents False Detection of Accessories in the Audio
Jack when Moisture is Present
Removes Audio Jack Pop and Click Caused by
MIC Bias
Detects Audio Jack Accessories:
- Standard Headphones
- Send / End Button Presses
Integrates a MIC Switch for 4-Pole Configuration
Related Resources
FSA8058 Evaluation Board
For samples and questions, please contact:
Analog.Switch@fairchildsemi.com
Logic
Baseband
CODEC
Audio Jack
GPIO Interface
MIC
MIC- Send/End Key
Jack Detect
FSA8058
Insert and
Moisture
Detection
Key Detection
Figure 1.
System Diagram


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