PI3USB102

PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Features
Description
• USB 2.0 compliant (high speed and full speed)
The PI3USB102 is a single differential channel 2:1 multiplexer/demultiplexer USB 2.0 Switch. Industry leading advantages include a
propagation delay of less than 250ps, resulting from its low channel
resistance and I/O capacitance. The device multiplexes differential
outputs from a USB Host device to one of two corresponding outputs.
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, high channel-to-channel noise isolation and is compatible
with various standards, such as High Speed USB 2.0 (480 Mb/s).
• RON is 4.0Ω typical @ VDD = 3.0V
• Low bit-to-bit skew
• Low Crosstalk: –33dB @ 480 Mbps
• Off Isolation: –40dB @ 480 Mbps
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On Capacitance: 5.5pF
The PI3USB102 offers over voltage protection per the USB 2.0
specification. With the chip powered on or off, all I/O pins can
withstand a short to Vbus (5V +/-10%). This feature can only be
offered if a 100-ohm pull up resistor is placed between VDD pin
to the power supply.
• VDD Operating Range: 2.7V to 4.2V ±10%
• Data pin I/O ESD: 8kV contact
• -0.5dB BW of 300MHz
• I/O pins have over-voltage protection and can tolerate a short
to Vbus as long as resistor/diode is added between 3.3V
power rail and Pericom's VDD
In situations where Vbus can be as high as 7V, Pericom recommends
changing the resistor value from 100ohm to 200ohm. Pericom can
still support over-voltage protection up to 7V, as long as the 200ohm
resistor is present.
• Packaging (Pb-free & Green):
10-contact UQFN, 1.4mm x 1.8mm x 0.5mm (ZME10)
10-contact TQFN, 1.3mm x 1.6mm x 0.75mm (ZLE10)
Application
• Routes signals for USB 2.0
• Hand-held devices
Block Diagram
Pin Description
DSEL
Truth Table
SEL
OE
Y+
Y-
X
H
Hi-Z
Hi-Z
L
L
M+
M-
H
L
D+
D-
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OE
D+
10
9
8
Y+
1
7
D+
Y-
2
6
D-
3
4
5
M+
M-
VDD
Y-
M-
M+
GND
Y+
SEL
OE
PS8950C
11/20/08
PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ......................................................–65°C to +150°C
Supply Voltage to Ground Potential .................................–0.5V to +4.6V
DC Input Voltage .................................................................–0.5V to +7V
DC Output Current ........................................................................120mA
Power Dissipation .............................................................................0.5W
Note: 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.
DC Electrical Characteristics for USB 2.0 Switching over Operating Range
(TA = –40°C to +85°C, VDD = 3.0 - 4.4V)
Parameter
Test Conditions(1)
Description
Min.
VDD = 4.2V
1.8
VDD = 3.3V
1.6
Typ.(2)
Max.
VIH
Input HIGH Voltage
Guaranteed
HIGH level
VIL
Input LOW Voltage
Guaranteed HIGH level
0.8
VIK
Clamp Diode Voltage
VDD = Max., IIK = –18mA
-1.2
IIH
Input HIGH Current
VDD = Max., VIH = VDD
±5
IIL
Input LOW Current
VDD = Max., VIL = GND
±5
RON
Switch On-Resistance(3)
VDD = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = –40mA
4.0
RFLAT(ON)
On-Resistance Flatness(3)
VDD = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = -40mA
1.5
ΔRON
On-Resistance match from center
ports to any other port(3)
VDD = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = -40mA
0.9
IOZ
I/O leakage current when port is
off
VDD = 4.3V, Vinput = 0 to 3.6V,
switch = off, OE = HIGH
Units
V
uA
5.0
Ω
2.0
±2
uA
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. VDD = 3.0 - 4.4V, TA = 25°C ambient and maximum loading.
3. Measured by the voltage drop between D and Dn pin at indicated current through the Switch On-Resistance is determined by the lower of the
voltages on the two (D, Dn) pins.
Power Supply Characteristics (VDD = 3.0 - 4.4V)
Parameters
Description
Test Conditions(1)
ICC
Quiescent Power Supply Current
Min.
Typ.
Max.
Units
VDD = Max., OE = GND or VDD
1
uA
VDD = Max, VSEL = 1.3V - 2.1V
15
uA
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
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PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Capacitance (TA = 25°C, f = 1MHz)
Parameters(3)
Description
Test Conditions(1)
CIN
Input Capacitance
COFF
Switch Capacitance, Switch OFF
CON
Switch Capacitance, Switch ON
VSEL = 0V
Typ.(2)
Max.
2.2
3.2
2.4
3.4
5.5
7.0
Units
pF
Dynamic Electrical Characteristics Over the Operating Range
Test Conditions
Min.
Typ.(2)
Parameters
Description
XTALK
Crosstalk
OIRR
OFF Isolation
BW
–3dB Bandwidth
RL = 50Ω
810
MHz
BW
–0.5dB Bandwidth
RL = 50Ω
300
MHz
RL = 50Ω, f = 240 MHz
Max.
Units
–35
dB
–40
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VDD = 3.3V, TA = 25°C ambient and maximum loading.
3. This parameter is determined by device characterization but is not production tested.
Switching Characteristics
Parameters
tPD
Test Conditions (1)
Description
Propagation
Min.
Max.
Units
0.5
50
ns
0.5
9.0
Delay(2,3)
tPZH, tPZL
Line Enable Time - SEL, OE to D(+/-), M(+/-)
tPHZ, tPLZ
Line Disable Time - SEL, OE to D(+/-), M(+/-)
Typ.
0.25
See Test Circuit for
Electrical Characteristics
tSKC-C
Output skew, channel-to-channel(2)
3.5
14
tSKb-b
Output skew, bit-to-bit (opposite transition of the same
output (tPHL-tPLH)(2)
7.5
20
ps
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Guaranteed by design.
3. The 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 0.25ns for 10pF 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 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.
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PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Test Circuit for Dynamic Electrical Characteristics
HP4396B
S1
VCC
R1
T1
PI3USB102
HP11667A
Test Circuit for Electrical Characteristics
6.0V
VDD
200-ohm
Pulse
Generator
VSEL
D.U.T.
VOUT
10pF
C
RT
Notes:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
The outputs are measured one at a time with on transition per measurement.
Switch Positions
08-0310
Test
Switch
tPLZ, tPZL
6.0V
tPHZ, tPZH
GND
Prop Delay
Open
4
PS8950C
11/20/08
PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Switching Waveforms
2.5V
SEL
1.25V
1.25V
3.5V
2.5V
Input
0V
2.5V
Waveform 1
1.5V
tPLH
tPHL
2.5V
tPLZ
VDD/2
VOH
Output
tPZL
VOL
VOL +0.3V
VOL
tPHZ
tPZH
2.5V
VOH
VDD/2
VOH
VOH –0.3V
VOL
Waveform 2
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output
enables or select pins may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power Supply Sequencing
Proper power supply sequencing is recommended for all CMOS devices. Always apply VDD and GND before applying signals to
input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Eye Diagram Measurements
L
PI3USB102
R
TP1
On
2.25"
0.5”
sw1
TPS
Rt1
45ohm
Rt2
45ohm
2
Figure 1: USB2.0 High-speed (480 Mbps) Signal Integrity Test Setup
Figure 2: USB 2.0 High Speed (480Mbps) TP1, left eye, and TP5, right eye, with PI3USB102 in the signal path while HDD is
driving.
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PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Packaging Mechanicals: 10-Contact TQFN (ZL10)
DATE: 03/14/08
Notes:
1) All dimensions are in millimeters
2) Ref JEDEC: MO-220
DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZL (ZL10)
DOCUMENT CONTROL #: PD-2052
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REVISION: B
PS8950C
11/20/08
PI3USB102
USB 2.0 High-Speed (480 Mbps) Signal Switch
Targeted for Battery Powered Applications
Packaging Mechanicals: 10-Contact TuQFN (ZM10)
4)1/
06-0823
Ordering Information
Ordering Code
Package Code
Package Description
Top Mark
PI3USB102ZLE
ZL
Pb-free & Green, 10-contact TQFN
XD
PI3USB102ZME
ZM
Pb-free & Green, 10-contact UQFN
XD
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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