PI3USB102E USB 2.0 High-Speed (480 Mbps) Switch

PI3USB102E
USB 2.0 High-Speed (480 Mbps)
Switch with 5V Protection
Features
Description
• USB 2.0 compliant (high speed, full speed, and low speed)
The PI3USB102E is a single differential channel 2:1 multiplexer/
demultiplexer USB 2.0 Switch. Industry leading advantages include a propagation delay of 250ps, resulting from its low channel
resistance and I/O capacitance. PI3USB102E is bidirectional and
offers very little attenuation of high-speed signals. 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: 4.0Ω typical @ VDD = 3.0V
• Channel On Capacitance: 6.0pF
• Wide -3dB Bandwidth: 1,000MHz
• Low bit-to-bit skew
• Low Crosstalk: -29B @ 480 Mbps
• Off Isolation: -28dB @ 480 Mbps
The PI3USB102E offers over voltage protection for the Y+/Y- pins
as per the USB 2.0 specification. With the chip powered on or off if
Y+/Y- pins are shorted to VBUS (5V +/- 5%), M+/M- and D+/Doutputs are clamped to provide voltage protection for downstream
devices.
• Near-Zero propagation delay: 250ps
• Support 1.8-V logic on control pins
• VDD Operating Range: 3.0V to 5.5V
• ESD: 8kV HBM on Y+/Y- pins per JESD22 standard
• Y+/Y- pins have over-voltage protection and can tolerate a
short to VBUS
• Packaging (Pb-free & Green):
10-contact TQFN, 1.3mm x 1.6mm x 0.75mm (ZL10)
Application
• Routes signals for USB 2.0
• PC, Notebooks and Hand-held devices
Block Diagram
over voltage
protection
Y+
M+
Y-
M-
over voltage
protection
D+
D-
SEL
Control
Logic
OE
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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
Truth Table
SEL
OE
Y+
Y-
X
H
Hi-Z
Hi-Z
L
L
M+
M-
H
L
D+
D-
SEL
VDD
OE
Pin Configuration
10
9
8
D+
2
6
D-
3
4
5
M+
7
Y-
M-
1
GND
Y+
Pin Description
Pin No.
Pin Name
Description
1
Y+
USB Data bus
2
Y-
USB Data bus
3
GND
Ground
4
M-
Multiplexed Source Inputs
5
M+
Multiplexed Source Inputs
6
D-
Multiplexed Source Inputs
7
D+
Multiplexed Source Inputs
8
OE
Switch Enable
9
VDD
Positive Power Supply
10
SEL
Switch Select
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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
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 +6V
DC Input Voltage..................................................................–0.5V to +6V
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 - 5.5V)
Parameter
Description
Test Conditions(1)
Min.
Typ.(2)
Max.
Units
0.8
V
VIH
Input HIGH Voltage
Guaranteed HIGH level
VIL
Input LOW Voltage
Guaranteed LOW level
VIK
Clamp Diode Voltage
VDD = Max., IIK = –18mA
IIH
Input HIGH Current for SEL and OE
VDD = Max., VIH = VDD
-100
100
IIL
Input LOW Current for SEL and OE
VDD = Max., VIL = GND
-100
100
IIH
Input HIGH Current for Y+/Y-
VDD = 3.3V., VY = 5.25V
50
IIL
Input LOW Current for Y+/Y-
VDD = 3.3V., VY = 0V
1
Leakage from Y+/Y- to Vdd when
VY+/Y- > Vdd
VDD = 3.3V., VY+/Y- = 5.25V,
OE = LOW
RON
Switch On-Resistance(3)
VDD = 3V, 0V ≤ Vinput ≤ 1.0V,
ION = –40mA
4.0
RFLAT(ON)
On-Resistance Flatness(3)
VDD = 3V, 0V ≤ Vinput ≤ 1.0V,
ION = –40mA
1.5
DRON
On-Resistance match from center
ports to any other port(3)
VDD = 3V, 0V ≤ Vinput ≤ 1.0V,
ION = –40mA
0.9
2.0
3.1
3.2
3.4
VOVP
VDD = 3.0 V
Input Over-Voltage Protection ThreshVDD = 3.3 V
old(4)
VDD = 3.6 V
3.4
3.5
3.7
3.7
3.8
4.0
ILeakage
1.4
-0.7
-1.2
200
nA
uA
nA
5.0
Ω
V
IOZ_M
Output leakage current on port M
when D path is on
VY+/Y- = 5.25V, VDD = 3.3V
SEL = High, VM+/M- = 0V
-200
200
nA
IOZ_D
Output leakage current on port D
when M path is on
VY+/Y- = 5.25V, VDD = 3.3V
SEL = Low, VD+/D- = 0V
-200
200
nA
IOFF
Y+/Y- Power-Off Leakage
Current
Vinput = 0V to 3.3V, VDD = 0V
5
uA
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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
Power Supply Characteristics
Test Conditions(1)
Parameters
Description
IDD
Power Supply Current
Min.
Typ.
Max.
Units
1
2
uA
VDD = 3.3V, OE = GND, VSEL = GND or VDD
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. VDD = 3.0 - 5.5V, TA = 25°C ambient.
3. Measured by the voltage drop between Y+/Y- and the lower of M+/M- and D+/D- at indicated current through the Switch.
4. When the voltage at Y+/Y- is greater than VDD + 0.2V, over-voltage protection limits the output voltage at M+/- and D+/- to protect connected devices from
damage.
Capacitance (Ta = 25°C, VDD = 3.3V, f = 1MHz)
Parameters(3)
Description
Test Conditions(1)
CIN
Input Capacitance
COFF (M/D)
Switch Off Capacitance for M and D ports
COFF (Y)
Switch Off Capacitance for Y port
CON
Switch Capacitance, Switch ON
Typ.(2)
Max.
2.2
3.2
OE = High
3.0
4.0
OE = High
5.0
6.0
VSEL = 0V or VDD
6.0
7.0
Units
pF
Dynamic Electrical Characteristics Over the Operating Range
Parameters(3)
Description
XTALK
Crosstalk
OIRR
OFF Isolation
-3dB BW
–3dB Bandwidth
RL = 50Ω
1,000
MHz
-0.5dB BW
–0.5dB Bandwidth
RL = 50Ω
275
MHz
TOVP
Over-Voltage Response Time(4)
CL = 10 pF, VY+/Y- = 5V,
VDD = 3.0 to 3.6V (6)
40
100
ns
VDSW
Dynamic Signal Output Swing(5)
CL = 10 pF, VY+/Y- = 5V,
VDD = 3.0 to 3.6V (6)
3.0
3.6
V
Test Conditions
Min.
Typ.(2)
Max.
Units
-29
RL = 50Ω, f = 240 MHz
dB
-28
2.7
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.
3. This parameter is determined by device characterization but is not production tested.
4. Time duration for output voltage higher than VOVP when input is connected to 5V.
5. Output voltage observed at M+/M- and D+/D- during over-voltage condition.
6. Tested using a 750 kHz square wave with tr = 75 ns and tf = 75 ns.
Switching Characteristics
Test Conditions (1) Min. Typ. Max.
Parameters Description
tPD
Propagation Delay(2,3)
tPZH, tPZL
Line Enable Time - SEL, OE to D(+/-), M(+/-)
0.25
Line Disable Time - SEL, OE to D(+/-), M(+/-)
See Test Circuit
tBBM
Break Before Make Delay
for Electrical
tSKb-b
Output skew, bit-to-bit (opposite transition of the same
output (tPHL-tPLH)(2)
tPHZ , tPLZ
Units
Characteristics
0.5
50
0.5
11.0
9.0
8
ns
ns
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 propagation 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
propagation delay to the system. Propagation 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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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
Test Circuit for Dynamic Electrical Characteristics
DUT
Test Circuit for Electrical Characteristics
6.0V
VDD
200-ohm
Pulse
Generator
D.U.T.
VOUT
10pF
RT
200-ohm
Notes:
1. CL = Load capacitance: includes jig and probe capacitance.
2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
3. All input impulses are supplied by generators having the following characteristics: ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
4. The outputs are measured one at a time with on transition per measurement.
Application Example Diagram
Switch Positions
Test
Switch
tPLZ , tPZL
6.0V
tPHZ , tPZH
GND
Prop Delay
Open
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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
Switching Waveforms
2.5V
Input
tPHL
0V
1.5V
Waveform 1
tPZL
tPLZ
VDD/2
VOH
2.5V
1.25V
1.25V
2.5V
tPLH
Output
2.5V
SEL
3.5V
2.5V
VDD/2
Waveform 2
Voltage Waveforms Propagation Delay Times
VOL +0.3V
tPHZ
tPZH
VOL
VOH
VOH –0.3V
VOL
VOH
VOL
Voltage Waveforms Enable and Disable Times
Overvoltage Protection Waveforms
Tr =75ns
Tf = 75ns
5V
VOVP
0
Input Signal Appears At Y+/YTovp
5V
VOVP
VDSW
0
Typical Output Response at M+/M- or D+/D-
The PI3USB102E offers over voltage protection for the Y+/Y- pins to protect from shorts to VBUS (5V). When the voltage on Y+/Yexceeds VOVP, the voltage at M+/M- and D+/D- is clamped to VDSW within the time TOVP. For rise time of 75 ns (as per USB1.1 and
USB2.0 low-speed specifications), TOVP is typically 40 ns. TOVP is smaller for faster risetimes. For example, TOVP is typically 20 ns
for rise time of 5 ns.
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PI3USB102E
USB 2.0 High-Speed (480 Mbps) Switch with 5V Protection
Packaging Mechanicals: 10-Contact TQFN (ZL10)
DATE: 088/30/13
DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZL (ZL10)
DOCUMENT CONTROL #: PD-2052
REVISION: E
13-0175
Ordering Information
Ordering Code
PI3USB102EZLE
Package Code
ZL
Package Description
Top Mark
10-contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
JQ
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
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