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The device detects the locations of the 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 device and have them operate correctly.

1. FSA8049 MIC/GND cross point switch detects OMTP, CTIA

Features:

• Ability to detect two different audio jack configurations and connect properly to each standard, enables use of all existing headsets in new devices without manual configuration
• Automatically routes GND and MIC to audio jack terminals
• Ability to detect 3- or 4- pole audio accessories
• Small foot print, 9-ball WLCSP 3x3 array saves board space
• Suitable for use in cellular phones, smart phones, tablets and laptop computers

Click here for full datasheet.

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