PI3USB223 Datasheet, PDF (1/10 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
Features
• Single +2.7V to +4.4V Supply Voltage
• Low 50µA Supply Current
• -3dB Bandwidth: 1500MHz (typ)
• Low 2.5Ω(typ)On-Resistance
• THD+N: 0.02%
• Shorting D+/R and D-/L to Vbus will not cause leakage when
V_DD = 0
• Internal Shunt Resistors for Click-and-Pop Reduction
• VBUS Detection for Automatic Switch Path Selection
• Packaging (Pb-free & Green available):
= 10-pin contact UQFN, 1.4 x 1.8, (ZM10)

Truth Table
ASEL V_DD VBUS L/R D+/D- L/R Shunt
X
L
L
OFF OFF
OFF
X
H
L
OFF OFF
ON
X
L
H
OFF OFF
OFF
L
H
H
OFF ON
ON
H
H
H
ON OFF
OFF
Description
The PI3USB223 combines AC coupled audio signals and USB2.0
HS (480Mbps) on the same pins.This enables users to use a single
connector to drive either a USB end point or an audio end point.
PI3USB223 incorporates gate pump technology required to main-
tain low Ron for ideal audio THD while reducing the capacitance
affect of high speed USB signals.The device also incorporates a
substrate pump technology which allows -2V signals to pass through
the switch without causing any leakage.
The PI3USB223 features protection on D+/R and D-/L to ensure no
damage will happen to the IC if these pins are shorted accidentally
to Vbus as well as ensuring there is no leakage when V_DD is on or
off.Also, it includes VBUS detection (VB) to automatically switch
to the USB signal path upon detection of a valid VBUS signal. It
also features internal shunt resistors on the audio path to reduce
clicks and pops heard during output. The device is available in a
space-saving 10-pin, 1.4mm x 1.8mm UQFN package, and operate
over the -40°C to +85°C temperature range.
Block Diagram
Pin Diagram
D+
D+/R
D-
76
R
D-/L
ASEL 8
5 VDD
L
VBUS 9
4 GND
VVBDET
VBUS
D+ 10
3L
12
ASEL
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15-0127
1
www.pericom.com 10/27/15