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Multimedia, Hi-Speed USB, Video, and Negative Swing Audio Switch with Video Amp/Filter
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General Description
The FSA203 is a multimedia device that includes a
Double-Pole, Double Throw (DPDT) USB / audio
multiplexer, a video/microphone switch, and a video
amplifier / filter path. The DPDT path combines a low-distortion
audio and a USB2.0 switch path.
This configuration enables audio and USB data to share
a common connector port. The architecture is designed
such that audio signals are allowed to swing below
ground, enabling the use of a common USB and
headphone connector for personal media players and
similar portable peripheral devices.
The FSA203 includes a power-off feature to minimize
current consumption when Vav or Vbus 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
- USB: 3.5W Typical On Resistance
- Video/Mic: 35W Typical On Resistance
- Audio: 3.5W Typical On Resistance
- USB: -3db Bandwidth at 0pF > 745MHz
- Video: -3db Bandwidth > 615MHz
- Low-Power Shutdown Mode: 1ľA Maximum
- Power-Off Protection on Common D+/R, D-/L,
Video/Microphone Ports
- Packaged in Pb-free 20-Lead DQFN and
2.5 x 4.5mm 20-Pin TSSOP
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Applications
- Cell Phone, PDA, Digital Camera, and Notebook
- LCD Monitor, TV, and Set-top Box
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