FSA321: Multimedia and USB2.0 Hi-Speed and Audio Switch with Negative Signal Capability and Built-in Termination on Unselected Audio Paths
Description: The FSA321 is a Double-Pole, Double Throw (DPDT) m...
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. This means a common USB and headphone jack can be used for personal media players and portable peripheral devices.
Since USB2.0 is an industry standard for shared data path in portable devices, FSA321 can be configured for automatic VBUS detection. The FSA321 includes a power-off feature as well as over-voltage tolerance to minimize current consumption when VSW exceeds VCC.
Typical applications involve switching in portables and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers.
Audio: 1.8Ω Typical On Resistance
HS-USB: 5Ω Typical On Resistance
HS-USB: 5pF Typical On Capacitance
Audio: 1Ω Typical On Resistance
USB Path -3db Bandwidth: > 720MHz
Negative Swing Capable Audio Channel
Power-off Protection on Common D+/R, D-/L Ports
Automatic USB Detection (Configurable)
Power-Off Protection on all I/O Ports
OVT on all I/O Ports
Flow-Through Pin Out Eliminates PCB Vias
Built-In Termination on Unselected Audio Paths to Inhibit Audio Pop
Storage & Peripherals
Wireless LAN Card & Broadband Access
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: Multimedia and USB2.0 Hi-Speed and Audio Switch with Negative Signal Capability and Built-in Termination on Unselected Audio Paths
Package Type: UQFN-10
Package Case Outline: 523BC
Container Type: REEL
Container Qty: 5000
Market Leadtime (weeks):4 to 8
Number of Switches:
Icc Max (µA):
ron Max (Ω):
VCC Min (V):
VCC Max (V):