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PDF PI3USB223 Data sheet ( Hoja de datos )
| Número de pieza | PI3USB223 | |
| Descripción | USB 2.0 High-Speed and Audio Switches | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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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
VDD = 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 VDD 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 -2Vsignals 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 VDD 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
12
3L
ASEL
All trademarks are property of their respective owners.
15-0127
1
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1 page  
PI3USB223
USB 2.0 High-Speed and Audio Switches
with Negative Signal Capability
Parameter
Symbol
Test Conditions
Min. Typ. Max. Units
Insertion Loss
IN(USB Path)
Frequency = 240MHz
-0.5
Off Isolation
Crosstalk
ISO
XTALK
Figure 4, f = 240MHz
f = 100kHz, VCOM = 1VRMS, RS = RL = 50Ω,
Figure 4
-35 dB
-80
Total Harmonic Distortion
+ Noise
LOGIC INPUT
THD + N (for
audio path)
R/L to D+/R and D-/L, f = 20Hz to 20kHz,
VD+/R and D-/L = 0.5VPP, DC Bias = 0V, RL =600Ω
0.02
%
Input Logic High
VIH for ASEL
1.6
Input Logic Low
VIL for ASEL
VIH for Vbus
0.4
V
2.2 5.5
VIL for Vbus
0 0.6
Input Leakage Current
ESD PROTECTION
IIN
VASEL and VVbus = 0V or VDD
-10 10 μA
All Pins
Human Body Model
±2
D+/R, D-/L, and VBUS
Human Body Model
±12 kV
D+/R, D-/L, and VBUS
Contact, IEC61000-4-2
±8
All trademarks are property of their respective owners.
15-0127
5
www.pericom.com 10/27/15
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet PI3USB223.PDF ] | |
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