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參數(shù)資料
| 型號(hào)： | FSA203BQX |
| 廠商： | Fairchild Semiconductor |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC USB/VIDEO/AUDIO SW 20-DQFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 音頻/視頻，USB 開(kāi)關(guān) |
| 電路： | 3 x DPDT |
| 導(dǎo)通狀態(tài)電阻： | 3.5 歐姆 |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 20-WQFN 裸露焊盤(pán)，20-DQFN |
| 供應(yīng)商設(shè)備封裝： | 20-DQFN |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | FSA203BQXDKR |
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June 2011
2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA203 Rev. 1.0.3
FSA203
—
Multimedia
High-Speed
USB,
Video,
and
Ne
gative
Swing
Audio
Switch
with
Vide
o
Amp/Filter
FSA203 — Multimedia High-Speed USB, Video, and
Negative Swing Audio Switch with Video Amp/Filter
Features
USB: 3.5 Typical On Resistance
Video/Mic: 3 Typical On Resistance
Audio: 3.5 Typical On Resistance
USB: -3db Bandwidth at 0pF > 745MHz
Video: -3db Bandwidth > 615MHz
Video: 1.0db Flatness > 6MHz
Low-Power Shutdown Mode: 1A Maximum
Power-Off Protection on Common D+/R, D-/L,
Video/Microphone Ports
Packaged in Pb-free 20-Lead DQFN
Applications
Cell Phone, PDA, Digital Camera, and Notebook
LCD Monitor, TV, and Set-Top Box
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.
IMPORTANT NOTE:
For additional performance information, please contact
analogswitch@fairchildsemi.com.
Ordering Information
Part Number
Top Mark
Package
FSA203BQX
203
20-Lead Depopulated very thin Quad Flat-pack No leads (DQFN)
JEDEC MO-241, 2.5 x 4.5mm
Diagrams
Video Out
S0:S1
VidMic
Video In
To Mic Amp In
MicOut
To ASIC Video In
VidOut
VidEn
D+/ R
D-/ L
D-
Audio R
D+
Audio L
GND
Vav
Control Block
Shdn
GSel
LP Filter
8MHz, 5th Order
Vbus
S0+Shdn
S1+Shdn
Figure 1. Functional Block Diagram
Figure 2. Typical Application Diagram
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