FSA8049

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Audio Jack Detection and Configuration, MIC / GND Cross Point Switch

General Description

The FSA8049 is an audio jack detection switch for 3- or 4-pole accessories. The FSA8049 detects the locations of ground (GND) and microphone (MIC) poles on the audio plug and automatically routes them to the appropriate connections. This allows the end user to plug accessories, such as headsets with different audio pole configurations, into the mobile device and have them operate correctly.

■ Detects 3- or 4-pole audio accessories

■ Detects polarity of GND and MIC on 4-pole plugs

■ Automatically routes GND and MIC to audio jack terminals

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention Qualification Support RoHS IPC1752 RoHS/REACH/
JIG Certificate of Compliance
FSA8049UCX Full Production Green as of Jul 2011 $0.363 WL-CSP 9L 9 TAPE REEL PDF Line 1:M3&K
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FIT :  5.7  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
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Features

  • Detection: Audio Plug GND & MIC Polarity
  • VDD: 2.5 to 4.4V
  • THD (MIC): 0.002% Typical
  • ESD (IEC 61000-4-2 Air Gap): 15kV
  • Operating Temperature: -40°C to 85°C
  • Package: 9-Ball WLCSP 3x3 Array, 0.4mm Terminal Pitch, 250µm Ball
  • Top Mark: M3

Applications

  • Mobile Handsets
  • PMP/MP3 Players

Videos

Automatic Audio Jack Detection Demo

Automatic Audio Jack Detection Demo (Chinese)

View all videos

Multilanguage - Chinese Multilanguage - English Multilanguage - Japanese Multilanguage - Korean