FSA221_09 [FAIRCHILD]
USB2.0 High-Speed (480Mbps) and Audio Switches with Negative Signal Capability; USB2.0高速传输（480Mbps ）和音频处理负信号功能的开关
| 型号： | FSA221_09 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | USB2.0 High-Speed (480Mbps) and Audio Switches with Negative Signal Capability |
| 文件： | 总2页 (文件大小：440K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Click here for this datasheet
translated into Chinese!
June 2009
FSA221 — USB2.0 High-Speed (480Mbps) and
Audio Switches with Negative Signal Capability
Features
Description
The FSA221 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.
HS-USB: 4Ω Typical On Resistance
HS-USB: 4.5pF Typical On Capacitance
Audio: 3Ω Typical On Resistance
-3db Bandwidth: > 720MHz
Low Power Consumption
Power-off Protection on Common D+/R, D-/L Ports
Since USB2.0 is an industry standard for shared data-
path in portable devices, the FSA221 also incorporates
a Vbus detection capability. The FSA221 includes a
power-off feature to minimize current consumption when
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.
Automatically Detects Vbus for Switch Path
Selection
Applications
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
Eco
Status
Part Number
Package Number Top Mark
Package Description
FSA221L10X
FSA221MUX
FSA221UMX
MAC010A
MUA10A
MLP010A
GK
FSA221
GL
RoHS
RoHS
Green
10-Lead MicroPak, JEDEC MO-255, 1.6 x 2.1mm
10-Lead MSOP JEDEC MO-187, 3.0 mm Wide
10-Lead Quad, Ultrathin MLP, 1.4 x 1.8mm
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Vbus
ASel
Switch Select
Vaudio
Control Circuitry
R
pd
D+
R
GND
D+/R
D-/L
D--
L
Figure 1.
FSA221 Analog Symbol
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.8
www.fairchildsemi.com
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.8
www.fairchildsemi.com
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