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FSA201 Datasheet(PDF) 3 Page - ON Semiconductor

Part # FSA201
Description  USB2.0 Full-Speed and Audio Switches
PDF  21 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

FSA201 Datasheet(HTML) 3 Page - ON Semiconductor

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© 2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA201 Rev. 1.2.2
2
Pin Assignments
GND
Vbus
10
L
D-
D+
R
Vaudio
D+/R
ASel
D-/L
2
1
3
4
5
9
8
7
6
10
--
2
1
3
4
2
1
3
4
5
9
8
7
6
9
8
7
6
Vbus
GND
110
9
8
7
6
5
4
3
2
D+
D-
R
L
D+/R
D-/L
Vaudio
ASel
Figure 2.
MicroPak™ 10-Pin
Figure 3.
MSOP 10-Pin
Pin Descriptions
Pin #
Name
Description
1, 2
D+, D-
USB data bus input sources
6
VAUDIO
Power supply (audio)
3, 4
R, L
Audio right and left input sources
9
ASEL
Audio select to override auto USB detect when VAUDIO supply is present
10
VBUS
Power supply (USB) and auto USB switch-path select
8, 7
D+/R, D-/L
USB and audio common connector ports
Truth Table
ASEL
(1)
VAUDIO
VBUS
L, R
D+, D-
LOW
LOW
LOW
OFF
OFF
LOW
LOW
High
(2)
OFF
ON
LOW
HIGH
(2)
LOW
ON
OFF
LOW
HIGH
(2)
HIGH
(2)
OFF
ON
HIGH
LOW
LOW
OFF
OFF
HIGH
LOW
HIGH
(2)
OFF
ON
HIGH
HIGH
(2)
LOW
ON
OFF
HIGH
HIGH
(2)
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.
H - 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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