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Pericom Semiconductor Corporation

PI3USB42 Datasheet Preview

PI3USB42 Datasheet

USB2.0 High-Speed (480Mbps) Signal Switch

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PI3USB42
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USB2.0 High-Speed (480Mbps) Signal Switch With Vbus Short Protection
Features
USB 2.0 compliant (high speed and full speed)
RON is 4.0Ω typical @ VDD = 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
1
2
3
4
5
6
7
8
9
10
Pin
Name
D+
D-
GND
D-A
D+A
D-B
D+B
/OE
VDD
SEL
Description
USB Data bus
USB Data bus
Ground
Multiplexed Source Inputs
Multiplexed Source Inputs
Multiplexed Source Inputs
Multiplexed Source Inputs
Switch Enable
Positive Power Supply
Switch Select
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+
D-
SEL LOGIC
D+A
D+B
D-A
D-B
/OE
Pin Assignment
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
2011-11-0004
PT0378-1 8/26/11
1




Pericom Semiconductor Corporation

PI3USB42 Datasheet Preview

PI3USB42 Datasheet

USB2.0 High-Speed (480Mbps) Signal Switch

No Preview Available !

PI3USB42
USB2.0 High-Speed (480Mbps) Signal Switch
With Vbus Short Protection
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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
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.
Recommended Operating Conditions
Symbol
VDD
VCNTRL(1)
VINPUT
Parameter
Operating Voltage
Control Input Voltage
Switch Input Voltage
TA Operating Temperature
Notes:
1. The control input must be held high or low and it must not float.
Min
1.8
0
-0.5
-40
Typ Max Unit
- 4.3
- 4.3 V
- 4.3
- 85 °C
DC Electrical Characteristics
(TA = -40°C to +85°C, VDD = 3.0V - 4.4V)
Parameter
Description
Test Conditions(1)
Min Typ(2) Max Unit
VIH
VIL
VIK
IIH
IIL
RON
RFLAT(ON)
RON
Input High Voltage
Input Low Voltage
Clamp Diode Voltage
Input High Current
Input Low Current
Switch On-Resistance(3)
On-Resistance Flatness(3)
On-Resistance match
from center
ports to any other port(3)
Guaranteed High Level
Guaranteed Low Level
VDD = Max., ISEL = -18mA
VDD = Max., VSEL = VDD
VDD = Max., VSEL = GND
VDD = Min., 0 ≤ VINPUT ≤0.4V,
IINPUT= -40mA
VDD = Min., 0 ≤ VINPUT ≤0.4V,
IINPUT = -40mA
VDD = Min., 0 ≤ VINPUT ≤0.4V,
IINPUT = -40mA
1.2 -
-
- - 0.60 V
- -0.7 -1.2
-
-
-
-
±100
±100
nA
- 4.0 5.5
- 0.25 -
- 0.1 1.0
IOZ
Output leakage current
when port is off
VDD = 4.3V, 0 ≤ VINPUT ≤0.4V
- - ±100 nA
IOFF
Power-Off Leakage
Current
VINPUT =0V~4.3V, VDD=0V
- - 100 nA
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.
2011-11-0004
PT0378-1 8/26/11
2


Part Number PI3USB42
Description USB2.0 High-Speed (480Mbps) Signal Switch
Maker Pericom Semiconductor Corporation
PDF Download

PI3USB42 Datasheet PDF






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