PI3USB223 Datasheet, PDF (2/10 Pages) Pericom Semiconductor Corporation – USB 2.0 High-Speed and Audio Switches with Negative Signal Capability

PI3USB223
USB 2.0 High-Speed and Audio Switches
with Negative Signal Capability
Pin Description
Pin#
Name
1
D-
2
R
3
L
4
GND
5
V_DD
6
D-/L
7
D+/R
8
ASEL
9
VBUS
10
D+
Function
USB D- from system side
Audio Input (Right)
Audio Input (Left)
Ground
Positive Supply Voltage Input. Bypass V_DD to GND with a 0.1µF capacitor as close to the device as
possible.
Common Terminal for D- or Left Audio
Common Terminal for D+ or Right Audio
Switch SEL to override VBUS detection when VBUS and V_DDare both high.
If ASEL is HIGH, then audio path will be on
If ASEL is LOW then USB path will be on ASEL has an internal 3M-ohm pull-down
If ASEL is tied LOW, then VBUS detection can be used for auto switching. If ASEL is LOW
VBUS = HIGH means USB path is active
USB D+ from system side
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15-0127
2
www.pericom.com 10/27/15