参数资料
型号: FSA221UMX
厂商: Fairchild Semiconductor
文件页数: 3/10页
文件大小: 0K
描述: IC SWITCH AUD USB DPDT 10-MLP
标准包装: 1
类型: USB 控制器
应用: 相机,移动电话,监控器,机顶盒
安装类型: 表面贴装
封装/外壳: 10-UFQFN
供应商设备封装: 10-uMLP(1.4x1.8)
包装: 标准包装
其它名称: FSA221UMXDKR
2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA221
Rev. 1.1.0
2
FS
A2
2
1
US
B2
.0
High
-Spe
ed
and
Audio
Swi
tches
wi
th
Nega
ti
ve
Signal
Ca
pab
il
it
y
Pin Assignments
GND
Vbus
10
L
D-
D+
R
Vaudio
D+/R
ASel
D-/L
2
1
3
4
5
9
8
7
6
--
Vbus
GND
1
10
9
8
7
6
5
4
3
2
D+
D-
R
L
D+/R
D-/L
Vaudio
ASel
Vbus
GND
1
8
5
4
3
2
D+
D-
R
L
D+/R
D-/L
Vaudio
ASel
9
10
6
7
Figure 2. 10-Lead MicroPak
Figure 3.
10-Lead MSOP
Figure 4. 10-Lead UMLP
Pin Descriptions
Name
Description
Vaudio
Power supply (Audio)
Vbus
Power supply (USB) and auto USB switch-path select
ASel
Audio select to override auto USB detect when VAUDIO supply is present
D+, D-
USB data bus input sources
R, L
Audio right and left input sources
D+/R, D-/L
USB and audio common connector ports
Truth Table
Vaudio
Vbus
L, R
D+, D-
LOW
OFF
LOW
HIGH
OFF
ON
HIGH
LOW
ON
OFF
LOW
HIGH
HIGH
(2)
OFF
ON
HIGH
HIGH
HIGH
(2)
ON
OFF
Notes:
1.
ASel - Internal resistor to GND provides auto-Vbus detect if there is no external connection. Forcing ASel HIGH
when VAUDIO is present overrides the USB path even if Vbus is present.
2.
HIGH - Value is the threshold as defined to meet USB2.0 Vbus requirements and audio supply threshold in a
system (see DC Tables).
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