FSA203 Multimedia High-Speed USB, Video, and Negative Swing Audio Switch with Video Amp/Filter June 2011 FSA203 Multimedia High-Speed USB, Video, and Negative Swing Audio Switch with Video Amp/Filter Features Description The FSA203 is a multimedia device that includes a USB: 3.5 Typical On Resistance Double-Pole, Double Throw (DPDT) USB / audio Video/Mic: 3 Typical On Resistance multiplexer, a video/microphone switch, and a video amplifier / filter path. The DPDT path combines a low- Audio: 3.5 Typical On Resistance distortion audio and a USB2.0 switch path. USB: -3db Bandwidth at 0pF > 745MHz This configuration enables audio and USB data to share Video: -3db Bandwidth > 615MHz a common connector port. The architecture is designed such that audio signals are allowed to swing below Video: 1.0db Flatness > 6MHz ground, enabling the use of a common USB and Low-Power Shutdown Mode: 1A Maximum headphone connector for personal media players and similar portable peripheral devices. Power-Off Protection on Common D+/R, D-/L, Video/Microphone Ports The FSA203 includes a power-off feature to minimize current consumption when V or V is not present. av bus Packaged in Pb-free 20-Lead DQFN This power-off circuitry is available for the common D+/R, D-/L ports only. Typical applications involve switching in portables and Applications consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers. Cell Phone, PDA, Digital Camera, and Notebook LCD Monitor, TV, and Set-Top Box IMPORTANT NOTE: For additional performance information, please contact analogswitch fairchildsemi.com. Ordering Information Part Number Top Mark Package 20-Lead Depopulated very thin Quad Flat-pack No leads (DQFN) FSA203BQX 203 JEDEC MO-241, 2.5 x 4.5mm Diagrams LP Filter Video In Video Out 8MHz, 5th Order G Sel V bus Shdn VidEn Control Block V av S0:S1 S0+Shdn To ASIC Video In VidOut VidMic To Mic Amp In MicOut S1+Shdn D+ D+/ R Audio R D- D-/ L Audio L GND Figure 1. Functional Block Diagram Figure 2. Typical Application Diagram 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA203 Rev. 1.0.3 FSA203 Multimedia High-Speed USB, Video, and Negative Swing Audio Switch with Video Amp / Filter Pin Assignments V V AV Bus 1 20 VideoOut VideoIn 2 19 VidEn 18 3 G Sel 4 17 VidOut VidMic 5 16 S0 MicOut 6 15 D+/R D+ 14 D- 7 D-/L 8 13 R Shdn 9 12 S1 L 10 11 GND No Connect Figure 3. DQFN-20 (Top Through View) Pin Descriptions Pin Name Description 1 V Audio/Video Power Supply av 2 Video In Video Input Source 3 VidEn Video Output Buffer Enable (Active High) 4 VidOut Video Connection to ADC 5 MicOut Microphone Pre-Amp Connection 6, 7 D+, D- USB Data Bus Input sources 8.9 R, L Audio Right and Left Input sources 10 GND Ground 11 NC No Connect 12,16 S1, S0 Switch Control Pins 13 Shdn Shutdown Control Pin 14, 15 D-/L, D+/R USB/Audio Common Connector Ports 17 VidMic Video / Microphone Common Connector Port 18 G Gain Select (0dB/6dB) G = High = 6dB Sel Sel 19 Video Out Buffered/Filtered Video Out 20 V USB V Supply bus bus Truth Table Shdn VidEn S0 S1 D+/R D-/L Vid/Mic Video Out LOW LOW LOW LOW D+ D- VidOut Off LOW LOW LOW HIGH R L VidOut Off LOW LOW HIGH LOW D+ D- MicOut Off LOW LOW HIGH HIGH R L MicOut Off LOW HIGH LOW LOW D+ D- VidOut On LOW HIGH LOW HIGH R L VidOut On LOW HIGH HIGH LOW D+ D- MicOut On LOW HIGH HIGH HIGH R L MicOut On HIGH X X X Hi-Z Hi-Z Hi-Z Off 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA203 Rev. 1.0.3 2