PERICOM PI3USB102ZLE

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 5.5Ω typical @ VCC = 3.0V
• Low bit-to-bit skew
• Low Crosstalk: –35dB @ 480 Mbps
• Off Isolation: –40dB @ 480 Mbps
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On Capacitance: 5.5pF
The PI3USB102 offers overvoltage 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 VCC pin
to the power supply.
• VCC Operating Range: 2.7V to 4.2V ±10%
• Data pin I/O ESD: 8kV contact
• 1,000 MHz Bandwidth
• I/O pins have over-voltage protection and can tolerate a short
to Vbus
• Packaging (Pb-free & Green): 10-contact TQFN (ZL10)
Application
• Routes signals for USB 2.0
• Hand-held devices
Block Diagram
Pin Description
Y-
MD+
D-
SEL
Y+
Y-
X
H
Hi-Z
Hi-Z
L
L
M+
M-
H
L
D+
D-
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8
1
7
D+
Y-
2
6
D-
3
4
5
M+
OE
9
M-
SEL
10
Y+
GND
Truth Table
OE
M+
VCC
Y+
SEL
OE
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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 VCC +0.5V
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, VCC = 3.0 - 4.4V)
Paramenter
Test Conditions(1)
Description
Min.
VCC = 4.2V
1.8
VCC = 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
VCC = Max., IIK = –18mA
-1.2
IIH
Input HIGH Current
VCC = Max., VIH = VCC
±5
IIL
Input LOW Current
VCC = Max., VIL = GND
±5
RON
Switch On-Resistance(3)
VCC = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = –40mA
5.5
RFLAT(ON)
On-Resistance Flatness(3)
VCC = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = -40mA
1.5
On-Resistance match from center ports to any other port(3)
VCC = Min., -0.4V ≤ Vinput ≤ 1.0V,
ION = -40mA
0.9
RON
Units
V
uA
6.0
Ω
2.0
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. VCC = 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 (VCC = 3.0 - 4.4V)
Parameters
Description
Test Conditions(1)
ICC
Quiescent Power Supply Current
VCC = Max., VSEL = GND or VCC
Min.
Typ.
Max.
Units
50
nA
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
Port I Capacitance, Switch OFF
CON
Switch Capacitance, Switch ON
Typ.(2)
Max.
Units
3.6
VSEL = 0V
3.0
pF
5.5
Dynamic Electrical Characteristics Over the Operating Range
Test Conditions
Min.
Typ.(2)
Parameters
Description
XTALK
Crosstalk
OIRR
OFF Isolation
BW
–3dB Bandwidth
RL = 50Ω
1,000
MHz
BW
–0.5dB Bandwidth
RL = 50Ω
260
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 VCC = 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
15.0
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
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
07-0095
Test
Switch
tPLZ, tPZL
6.0V
tPHZ, tPZH
GND
Prop Delay
Open
4
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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 supplysequencing is recommended for all CMOS devices. Always apply VCC 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
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DATE: 03/20/06
.OTES
!LLDIMENSIONSAREINMILLIMETERS
2EF*%$%#-/
DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZL (ZL10)
REVISION: A
DOCUMENT CONTROL #: PD-2052
Ordering Information
Ordering Code
Package Code
Package Description
Top Mark
PI3USB102ZLE
ZL
Pb-free & Green, 10-contact TQFN
XC
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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