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PI3USB32
High-Speed USB 2.0 (480 Mbps) 1-Port Switch
with Full Power Down Feature
Features
Description
· VDD Operation at 3 V and 4.3 V
The PI3USB32 is a high-bandwidth switch specially designed
for the switching of high-speed USB 2.0 signals in handset and
consumer applications, such as cell phones, digital cameras, and
notebooks with hubs or controllers with limited USB I/Os. The
wide bandwidth (750 MHz) of this switch allows signals to pass
with minimum edge and phase distortion. The switch is bidirectional and offers little or no attenuation of the high-speed signals
at the outputs. It is designed for low bit-to-bit skew and high
channel-to-channel noise isolation, and is compatible with various standards, such as high-speed USB 2.0 (480 Mbps).
· 1.8-V Compatible Control-Pin Inputs
· IOFF Supports Full Power-Down Mode
Operation
· ron = 6-Ohm Typical
· Dron <0.35-Ohm Typical
· Cio(ON) = 5 pF Typical
· Low Power Consumption
· ESD Performance
– 7kV Human-Body Model, per JESD22 spec (A114-B, Class II)
– 1000-V Charged-Device Model (C101)
– ±4kV contact, per IEC61000-4-2
· Wide –3-dB Bandwidth = 2110 MHz Typical
· Packaged in 8-Pin TQFN (1.5 mm ´ 1.5 mm)
Application
• Routes Signals for USB 1.0, 1.1, and 2.0
1
OE
D+
6
5
4
8
VDD
HSD1+
D-
7
2
HSD+
Block Diagram
GND
3
D+
NC
(Top View)
HSD-
Pin Configuiration
D+
Control
1
2
3
7
6
5
D-
NC = No Internal Connection
10-0146
1
4
8
VDD
HSD-
OE
HSD+
D-
NC
HSD1-
OE
(Bottom View)
GND
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
Pin Description
Name
Description
OE
Bus-switch enable
D+, D-, HSD+, HSD-
Data ports
NC
No connect
OE
Description
H
Disconnect
L
D+, D- = HSD+, HSD-
Truth Table
Absolute Maximum Ratings(1)
(Over operating free-air temperature range unless otherwise noted.)
Supply Voltage Range (VDD)................................................–0.5V to +7V
Control Input Voltage Range (VIN)(2)(3)...............................–0.5V to +7V
VI/O Switch I/O Voltage Range(2)(3)(4)
HSD+, HSD–...................................................–0.5V to VDD+0.3
D+, D– when VDD > 0.....................................–0.5V to VDD+0.3
D+, D– when VDD > 0..........................................................5.25V
Control Input Clamp Current.........................................................–50 mA
I/O Port Clamp Current..................................................................–50 mA
ON-state switch current(5).............................................................±64 mA
Continuous current through VDD or GND...................................±100 mA
I/O Port Clamp Current..................................................................–50 mA
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Note:
(1) Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device. This
is a stress rating only and functional operation of the device
at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
(2) All voltages are with respect to ground, unless otherwise
specified.
(3) The input and output voltage ratings may be exceeded if
the input and output clamp-current ratings are observed.
(4) VI and VO are used to denote specific conditions for VI/O.
(5) II and IO are used to denote specific conditions for II/O.
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
Reccomended Operating Conditions(1)
Parameter
VDD
Supply voltage
VIH
High-level control input voltage
VIL
Input LOW Voltage
VI/O
Data input/output voltage
TA
Notes:
1.
Description
Min.
Max.
Units
3.0
4.3
V
VDD = 3V to 3.6V
1.3
VDD = 4.3 V
1.7
V
VDD = 3V to 3.6V
0.5
VDD = 4.3 V
0.6
Operating free-air temperature
V
0
VDD
V
-40
85
°C
All unused control inputs of the device must be held at VDD or GND to ensure proper device operation.
Electrical Characteristics over operating free-air temperature range (unless otherwise noted)
TEST CONDITIONS1
PARAMETER
VIK
MIN
TYP(2)
MAX
UNIT
-1.2
±1
V
μA
VDD = 4.3 V, VO = 0 to 3.6V, VI = 0, Switch OFF
±1
μA
VDD = 0 V, VO = 0 to 4.3 V, VI = 0, VIN = VDD or GND
±2
μA
VDD = 3 V, II = –18 mA
IIN
Control
inputs
IOZ(3)
IOFF
D+ and
D-
ICC
VDD = 4.3 V, VIN = 0 to 4.3 V, VDD = 0 V
VDD = 4.3 V, II/O = 0
70
μA
Control
inputs
VDD = 4.3 V, VIN = 2.6 V
10
μA
Control
inputs
VDD = 0 V, VIN = VDD or GND
1
pF
Cio(OFF)
VDD = 3.3 V, Switch OFF
2
pF
Cio(ON)
VDD = 3.3 V, Switch ON
5
pF
RON
VDD = 3 V, VI = 0.4 V, IO = –8 mA
6
DRON
VDD = 3 V, VI = 0.4 V, IO = –8 mA
0.35
W
DRON(flat)
VDD = 3 V, VI = 0 V or 1 V, IO = –8 mA
2
W
DICC
(4)
CIN
(5)
10
W
Notes:
1. VIN and IIN refer to control input (OE). VI, VO, II, and IO refer to data pins.
2. All typical values are at VDD = 3.3 V (unless otherwise noted), TA = 25°C.
3. For I/O ports, the parameter IOZ includes the input leakage current.
4. This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VDD or GND.
5. Measured by the voltage drop between the D and HSD terminals at the indicated current through the switch. ON-state resistance is
determined by the lower of the voltages of the two terminals.
10-0146
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PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
Dynamic Electrical Characteristics (over operating range, TA = –40°C to 85°C, VDD = 3.3 V ± 10%, GND = 0 V)
Parameter
Test Conditions(1)
Description
OIRR
OFF isolation
RL = 50-Ohms, f = 240 MHz
BW
Bandwidth (-3 dB)
RL = 50-Ohms
Typ.(1)
Units
-30
dB
2110
MHz
Xtalk
Crosstalk
RL =50-Ohms, f = 240 MHz
-55
dB
Notes:
1. For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
Switching Characteristics (over operating range, TA = –40°C to 85°C, VDD = 3.3 V ± 10%, GND = 0 V)
Parameters
Test Conditions (1)
Description
Delay(2,3)
Min.
Typ.
Max.
Units
RL = 50 W, CL = 5 pF
0.35
ns
tPD
Propagation
tON
Line Enable Time, OE to D+/D-
RL = 50 W, CL = 5 pF
55
ns
tOFF
Line Disable Time - OE to D+/D-
RL = 50 W, CL = 5 pF
25
ns
tSK(P)
Skew between opposite transitions of the same output
(tPHL - tPLH)2
RL = 50 W, CL = 5 pF
Total Jitter2
RL = 50 W, CL = 5
pF, tR = tF = 500 ps
at 480 Mbps (PBRS=
215 - 1)
tJ
50
ps
200
ps
Notes:
1. For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
2. Guaranteed by design.
3. The bus switch contributes no propagational delay other than the RC delay of the on resistance of the switch and the load capacitance.
The time constant for the switch alone is of the order of 0.25 ns for 10-pF load. Since this time constant is much smaller than the rise/fall
times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when used in
a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
10-0146
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PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
Application Information
VDD
PI3USB32
D+
Base Band
Prrocessor
or FS USB
Controller
USB
Connector
D-
OE
HS USB
Controller
Application Diagram
10-0146
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PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
VDD
HSD+
VD+
VHSD+
D+
(B)
CL
OE
RL
TEST
RL
t ON
50 Ω
VDD
t OFF
50 Ω
VDD
Logic
Input
(V OE)
GND
CL
50%
Switch
Output
(HSD+)
1.8 V
50%
t ON
VOE(A)
VIN
0
t OFF
90%
90%
VOH
VOL
Turn-On (tON) and Turn-Off Time (tOFF)
VDD
Network Analyzer
VOUT
50
Source
Signal
HSD+
D+
50
50
VIN
Channel OFF: HSD to D+
VOE = VDD
Network Analyzer Setup
VOE
+
Source Power = 0 dBm
(632-mV P-P at 50- load)
DC Bias = 350 mV
OE
GND
Figure 8. OFF Isolation (OIRR)
10-0146
6
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
VDD
Network Analyzer
50
VOUT1
HSD+
Channel ON: HSD+ to D+
D+
Source
Signal
VIN
VOE = GND
Network Analyzer Setup
50
VOE
Source Power = 0 dBm
(632-mV P-P at 50- load)
OE
GND
DC Bias = 350 mV
GND
Figure 10. Bandwidth (BW)
400 mV
Figure 11. Propagation Delay
10-0146
7
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
VOH
VOL
Pulse Skew tSK(P)
VOH
VOL
VOH
VOL
Output Skew tSK(P)
Skew Test
Copyright
© 2007–2008, Texas Instruments Incorporated
10-0146
8
Product Folder Link(s): TS3USB31
PS9010B
Submit Documentation Feedback
03/25/10
9
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
VDD
VOUT
HSD+
D+
+
VIN
Channel ON
r on
VOE
IIN
OE
+
VIN
VOUT
IIN
VOE = VIH or VIL
GND
ON-State Resistance (ron)
VDD
VOUT
HSD+
VIN
D+
+
+
VOE
OE
OFF-State Leakage Current
Channel OFF
VOE = VIH or VIL
+
GND
OFF-State Leakage Current
10-0146
9
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
VDD
Capacitance
Meter
VBIAS
VOUT1 HSD+
VBIAS = VDD or GND
VOE = VDD or GND
VIN D+
VOE
Capacitance is measured at HSD+,
D+, and OE inputs during ON
and OFF conditions.
OE
GND
Capacitance
10-0146
10
PS9010B
03/25/10
PI3USB32
High-Speed USB 2.0 (480 Mbps)
1-port Switch with Full Power Down Feature
Ordering Information
Ordering Code
Package Code
Package Description
Top Mark
PI3USB32XAE
XA
8-pin, TQFN
EK
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• Adding X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
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PS9010B
03/25/10