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 FSA8008 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. ￭ 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