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Multimedia and USB 2.0 Hi-Speed and Audio Switches w/ Negative Signal Capability
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General Description
The FSA223 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 both audio and USB 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, the FSA223 also incorporates a VCC detection capability. The
FSA223 includes a power-off feature to minimize current consumption when
VCC is not present. This power-off circuitry is available for the
common D+/R, D-/L ports only. Typical applications involve switching in
portables and consumer applications, such as cell phones, digital cameras, and
notebooks with hubs or controllers
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Features
| HS-USB: 4W Typical On Resistance
HS-USB: 4.5pF Typical On Capacitance
Audio: 3W Typical On Resistance
-3db Bandwidth: > 720MHz
Low Power Consumption
Power-off Protection on Common D+/R, D-/L Ports
Automatically Detects VCC for Switch Path Selection
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Applications
- Cell Phone, PDA, Digital Camera, and Notebook
- LCD Monitor, TV, and Set-top Box
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