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PI3USB42ZMEX

P1-P3P4-P6P7-P7
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USB2.0 High-Speed (480Mbps) Signal Switch With Vbus Short Protection
2011-11-0004
PT0378-1 8/26/11
1
PI3USB42
Features
•
USB 2.0 compliant (high speed and full speed)
•
R
ON
is 4.0Ω typical @ V
DD
= 3.0V
•
Low bit-to-bit skew
•
Low Crosstalk: -41dB @ 240 MHz
•
Off Isolation: -37dB @ 240 MHz
•
Wide -3db bandwidth: 770MHz
•
Near-Zero propagation delay: 250ps
•
Support for 1.8V/2.5V/3.3V Logic on Control pins
•
Channel On Capacitance: 6.0pF
•
VDD Operating Range: 1.8V to 4.3V ±10%
•
Data pin I/O ESD: >8kV HBM protection per
JESD22-A114D specification
•
I/O pins have over-voltage protection and can
tolerate a short to Vbus
•
Packaging (Pb-free & Green): 10-pin UQFN (ZM10)
Applications
•
Route signals for USB 2.0
•
Cell phone, PDA, Digital camera and Notebook
•
LCD Monitor ,TV, Set-top box
•
Portable device
Pin Description
Pin No
Pin
Name
Description
1 D+ USB Data bus
2 D- USB Data bus
3 GND Ground
4 D-A Multiplexed Source Inputs
5 D+A Multiplexed Source Inputs
6 D-B Multiplexed Source Inputs
7 D+B Multiplexed Source Inputs
8 /OE Switch Enable
9 V
DD
Positive Power Supply
10 SEL Switch Select
Logic Function Table
/OE SEL Function
H X I/O’s = Hi-Z
L L D(+/-) to D(+/-)A
L H D(+/-) to D(+/-)B
Description
The PI3USB42 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).
The PI3USB42 offers overvoltage protection per the
USB2.0 specification. With the chip powered on or off,
all I/O pins can withstand a short to Vbus (5V +/-10%).
If VDD=0V, the I/Os can still have signals present, and
the signal will NOT leak through to VDD.
Functional Block Diagram
D-
SEL
D-A
D-B
D+
/OE
D+A
D+B
LOGIC
Pin Assignment
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2011-11-0004
PT0378-1 8/26/11
2
PI3USB42
USB2.0 High-Speed (480Mbps) Signal Switch
With Vbus Short Protection
Maximum Ratings
Storage Temperature ............................................................. 65 to +150
Supply Voltage to Ground Potential ........................................-0.5V to +4.6V
Control Input Voltage ................................................................-0.5V to 4.6V
DC Switch Voltage (D+, D-, D+A, D-A, D+B and D-B) ..... -0.5V to 5.25V
DC Output Current .............................................................................120mA
Power Dissipation ..................................................................................0.5W
ESD(HBM) .......................................................................................... .>8kV
Recommended Operating Conditions
Symbol Parameter Min Typ Max Unit
V
DD
Operating Voltage 1.8 - 4.3
V
CNTRL
(1)
Control Input Voltage 0 - 4.3
V
INPUT
Switch Input Voltage -0.5 - 4.3
V
T
A
Operating Temperature -40 - 85 °C
Notes:
1. The control input must be held high or low and it must not float.
DC Electrical Characteristics
(T
A
= -40°C to +85°C, V
DD
= 3.0V - 4.4V)
Parameter Description Test Conditions
(1)
Min
Typ
(2)
Max
Unit
V
IH
Input High Voltage Guaranteed High Level 1.2 - -
V
IL
Input Low Voltage Guaranteed Low Level - - 0.60
V
IK
Clamp Diode Voltage V
DD
= Max., I
SEL
= -18mA - -0.7 -1.2
V
I
IH
Input High Current V
DD
= Max., V
SEL
= V
DD
- - ±100
I
IL
Input Low Current V
DD
= Max., V
SEL
= GND - - ±100
nA
R
ON
Switch On-Resistance
(3)
V
DD
= Min., 0 ≤ V
INPUT
≤0.4V,
I
INPUT
= -40mA
- 4.0 5.5
R
FLAT(ON)
On-Resistance Flatness
(3)
V
DD
= Min., 0 ≤ V
INPUT
≤0.4V,
I
INPUT
= -40mA
- 0.25 -
R
ON
On-Resistance match
from center
ports to any other port
(3)
V
DD
= Min., 0 ≤ V
INPUT
≤0.4V,
I
INPUT
= -40mA
- 0.1 1.0
Ω
I
OZ
Output leakage current
when port is off
V
DD
= 4.3V, 0 ≤ V
INPUT
≤0.4V - - ±100
nA
I
OFF
Power-Off Leakage
Current
V
INPUT
=0V~4.3V, V
DD
=0V - - 100 nA
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. V
DD
= 3.0 - 4.4V, T
A
= 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.
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.
The input and output negative voltage ratings
may be exceeded if the input and output diode
current ratings are
observed
.
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2011-11-0004
PT0378-1 8/26/11
3
PI3USB42
USB2.0 High-Speed (480Mbps) Signal Switch
With Vbus Short Protection
Power Supply Characteristics
(T
A
= -40°C to +85°C, V
DD
= 3.0V - 4.4V)
Parameter
Description Test Conditions
(1)
Min Typ Max Unit
I
CC
Quiescent Power
Supply current
V
DD
= Max., V
SEL
= V
DD
or GND - - 100 nA
I
CCT
Increase in I
CC
Current per
Control Voltage
and V
DD
V
CNTRL
=1.8V, V
DD
=4.3V - 5.8 15 µA
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
Capacitance
T
A
= 25°C,
V
DD
= 3.0V,
f = 1MHz)
Parameters Description Test Conditions
Min.
Typ
Max. Units
C
CNTRL
Control logic pin Input Capacitance
-
6.0
-
C
OFF
Switch Capacitance, Switch OFF
-
1.9
-
C
ON
Switch Capacitance, Switch ON
V
SEL
= 0V
-
6.0
-
pF
Dynamic Electrical Characteristics Over the Operating Range
(T
A
= 25°C, V
DD
= 3.0V)
Parameters
Description Test Conditions(1) Min.
Typ
Max.
Units
XTALK Crosstalk
-
-41
-
OIRR OFF Isolation
R
L
= 50Ω, f = 240 MHz
-
-37
-
dB
BW –3dB Bandwidth R
L
= 50Ω
-
770
- MHz
Switching Characteristics
(T
A
= 25°C, V
DD
= 3.0V)
Parameters
Description Test Conditions
(1)
Min Typ Max Units
t
PD
Propagation Delay
(2,3)
-
0.25
-
t
PZH
, t
PZL
Line Enable Time - SEL to
D(+/-), D(+/-)n
-
25
-
t
PHZ
, t
PLZ
Line Disable Time - SEL to
D(+/-), D(+/-)n
See Test Circuit for
Electrical Characteristics
-
4
-
ns
t
BBM
Break-Before-Make
-
-
7
- ns
V
DD
= 3V
-
-
35
t
SKb-b
Output skew, bit-to-bit
(opposite transition of the same
output (t
PHL
-
t
PLH
)
(2)
V
DD
= 4V
-
-
60
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.
P1-P3P4-P6P7-P7

PI3USB42ZMEX

Mfr. #:
Buy PI3USB42ZMEX
Manufacturer:
Diodes Incorporated
Description:
USB Switch ICs Dual SPDT for USB2.0 HS Compliance
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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