FSA8039A - Audio Jack Interface

onsemi

General Description

The FSA8039A is a detection switch for an audio jack that employs a normally open detect pin.

The FSA8039A works with 3-pole and 4-pole accessories.

Key Features

Detection: - Accessory Plug-In - Send / End Key Press - Prevents False Detection due to Moisture.
VDD: 2.5 V to 4.5 V.
VIO: 1.6 V to VDD.
THD (MIC): 0.01% Typical.
15 kV Air Gap ESD.
MIC Switch Removes Audio Jack “Pop” and “Click” Caused by MIC Bias.

📥 Download Datasheet

FSA8039A audio jack interface by onsemi - Datasheet Preview

Datasheet Details

Part number	FSA8039A
Manufacturer	onsemi
File Size	384.47 KB
Description	Audio Jack Interface
Datasheet	FSA8039A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FSA8039A — Audio Jack Interface Solution with Moisture Sensing FSA8039A Audio Jack Interface Solution with Moisture Sensing Features  Detection: - Accessory Plug-In - Send / End Key Press - Prevents False Detection due to Moisture  VDD: 2.5 V to 4.5 V  VIO: 1.6 V to VDD  THD (MIC): 0.01% Typical  15 kV Air Gap ESD  MIC Switch Removes Audio Jack “Pop” and “Click” Caused by MIC Bias Applications  Any Device with 3.5 mm and 2.5 mm Audio Jack  Cellular Phones, Smart Phones, and Tablets  MP3, GPS, and PMP Description The FSA8039A is a detection switch for an audio jack that employs a normally open detect pin. The FSA8039A works with 3-pole and 4-pole accessories. The FSA8039A features moisture sensing that prevents false detection of accessories in the audio jack.