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FSA8008A
Audio Jack Detection and Configuration Switch
The FSA8008A is an audio jack detector and switch for 3− or 4−pole accessories. In addition to detection, the FSA8008A features an integrated MIC switch that allows the processor to configure the audio jack. 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.
Features
• Determines 3− or 4−Pole Audio Jacks • Removes Audio Jack Pop−n−Click Caused by MIC Bias • Detects Audio Jack Accessories:
♦ Standard Headphones ♦ Headsets with MIC ♦ Send / End Button Presses
• Integrates a MIC Switch for 4−Pole Configuration
Applications
• 3.5 mm and 2.