DESCRIPTION

· The FSA800 is a 3:1 USB accessory switch designed for high-speed USB 2.0 signaling, enabling USB data, stereo and mono audio, microphone, and UART data to share a common connector port.

· It allows audio signals to swing below ground, facilitating the use of a common USB and headphone jack for personal media players and portable peripheral devices.

· The device includes a dedicated pin for wall charger detection, providing charger detection to the baseband.

· It complies with both USB Rev. 2.0 and micro-USB specifications.

FEATURES

· 3:1 switch capable of handling audio headsets, UART, and high- and low-speed USB data.

· USB charger detection and indication functionality.

· Negative-swing-capable audio channel for enhanced audio signal handling.

· Built-in termination resistors to reduce audio pop noise.

· Simple switch control using three select pins.

· 28V over-voltage tolerance on VBUS for added protection.

APPLICATIONS

· Suitable for cell phones, MP3 players, and PDAs.

· Ideal for personal media players and portable peripheral devices requiring a shared USB and headphone jack.