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FSA321 Datasheet Usb2.0 Hi-speed (480mbps) And Audio Switches

Manufacturer: Fairchild (now onsemi)

Overview: FSA321 — USB2.0 Hi-Speed and Audio Switches with Negative Signal Capability March 2013 FSA321 — USB2.

General Description

The FSA321 is a Double-Pole, Double Throw (DPDT) multiplexer that combines a low-distortion audio and a USB2.0 High-Speed (HS) switch path.

This configuration enables audio and USB data to share a common connector port.

The architecture is designed to allow audio signals to swing below ground.

Key Features

  • Audio: 1.8 Typical On Resistance.
  • HS-USB: 8 Typical On Resistance.
  • HS-USB: 5pF Typical On Capacitance.
  • USB Path -3db Bandwidth: > 720MHz.
  • Negative Swing Capable Audio Channel.
  • Power-off Protection on Common D+/R, D-/L Ports.
  • Automatic USB Detection (Configurable).
  • OVT on all I/O Ports.
  • Flow-Through Pin Out Eliminates PCB Vias.
  • Built-In Termination on Unselected Audio Paths to Inhibit Audio Pop.

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