FSA8039A: Audio Jack Detection and Configuration Switch with Moisture Sensing

The FSA8039A is an audio jack switch for a normally open detect pin. The FSA8039A can work with 3-pole and 4-pole accessories. The FSA8039A features moisture sensing, which prevents false positive detection of accessories in the audio jack. The integrated MIC switch allows a processor to configure attached accessories. 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

• Detection: Accessory Plug-In, 3-Pole or 4-Pole Audio Jack, Send / End Key Pressed, Moisture
• Switch Type: MIC
• V_DD: 2.5 V to 4.5 V
• V_IO: 1.6 to V_DD
• THD (MIC): 0.01% Typical
• ESD (Air Gap): 15 kV
• Operating Temperature: -40°C to 85°C
• Package: 10-Lead UMLP, 1.4 mm × 1.8 mm × 0.5 mm, 0.4 mm Pitch
• Top Mark: NF