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DATASHEET LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
IDTUS8031
Description
The IDTUS8031 is a low power, dual SPST 2-port hi-speed USB 2.0 switch. This part is configured as a single pole, single throw switch and is optimized for switching or isolating a hi-speed (480 Mbps) source or a hi-speed and full-speed (12 Mbps) source. The IDTUS8031 is compatible with the requirements of USB2.0 and features an extremely low ON capacitance (CON) of 3.7 pF. The wide bandwidth of this device (>720 MHz) exceeds the bandwidth needed to pass the 3rd harmonic, resulting in signals with minimum edge and phase distortion. Superior channel-to-channel crosstalk also minimizes interference. The IDTUS8031 contains circuitry on the D+/D- pins which allows the device to withstand an overvoltage condition. This device is also designed to minimize current consumption even when the control voltage applied to the OE pin is lower than the supply voltage (VCC). This feature is especially valuable to portable applications such as cell phones, allowing for direct interface with the general purpose I/Os of the baseband processor.
Features
* Low On capacitance, 3.7 pF (typical) * Low On resistance, 6.5 (typical) * Low power consumption (1 A maximum)
- 10 A maximum ICCT over and expanded control voltage range (VIN=2.6 V, VCC=4.3 V)
* Wide -3dB bandwidth, > 720 MHz * 8K I/O to GND ESD protection * Power OFF protection when VCC= 0V, D+/D- pins can
tolerate up to 4.3 V
* Packaged in RoHS compliant 8-pin MSOP and 10-lead
MLP (1.4 x1.8mm)
Applications
* Notebooks, PDAs * Cellular phones, Digital cameras * LCD monitors, TVs, Set-top Boxes
Block Diagram
VCC Base Band Processor or FS USB Controller IDTUS8031 D+ USB Connector
D-
OE HS USB Controller
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
1
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Pin Assignment (MSOP)
Pin Assignment (MLP)
D+ D-
OE VCC NC HSD+ HSD-
VCC GND NC
Analog Symbol
HSD+ D+ HSDD-
OE
Control
Truth Table
OE
H L
Function
Disconnect D+, D- = HSD
Pin Descriptions
Pin Name
OE D+, D-, HSD+, HSDNC
Pin Description
Bus switch enable. Data ports. No connect.
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
2
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the IDTUS8031. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. All voltages referenced to ground.
Symbol
VCC VS VIN Supply Voltage DC Input Voltage
1 1
Parameter
Rating
-0.5 V to 4.6 V -0.5 V to 4.6 V -0.5 V to VCC to 0.3 V -0.5 V to 4.6 V -50 mA 50 mA -65C to 150C 7.5 kV 8 kV
DC Switch Voltage HSD D+, DDC Output Current
DC Input Diode Current Storage Temperature ESD (Human Body Mode) All Pins I/O to GND
Recommended Operating Conditions 2
Symbol
VCC VIN Supply Voltage DC Switch Voltage DC Input Diode Current Storage Temperature
Parameter
0V to VCC 0V to VCC
Rating
3.0 V to 4.3 V
-40C to +85C
Note 1: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. DC switch voltage may never exceed 4.6V Note 2: Control input must be held HIGH or LOW and it must not float.
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
3
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
DC Electrical Characteristics
Unless stated otherwise, typical values are at 25C
TA = -40C to +85C Symbol
VIK VIH VIL IIN IOZ IOFF RON RON RON Flatness ICC ICCT
Parameter
Clamp Diode Voltage Input Voltage HIGH Input Voltage LOW Control Input Leakage OFF State Leakage Power OFF Leakage Current (D+, D-)
Conditions
IIN = -18 mA
VCC (V)
3.0 3.0 to 3.6 4.3 3.0 to 3.6 4.3
Min.
0 1.3 1.7
Typ.
Max. Units
-1.2 V V 0.5 0.7 V
VIN = 0V to VCC 0 < HSD < VCC VIN = 0V to 4.3 V VCC = 0V VIN = 0.4 V, ION = -8 mA VIN = 0.4 V, ION = -8 mA VIN = 0V to 1.0 V, ION = -8 mA VIN = 0V or VCC, IOUT = 0 VIN = 2.6 V, VCC = 4.3 V
4.3 4.3 0 3.0 3.0 3.0 4.3 4.3
-1.0 -2.0 -2.0 6.5 0.35 2.0
1.0 2.0 2.0 10.0
A A A

Switch On Resistance 1
Delta RON
2 1
RON Flatness
Quiescent Supply Current Increase in ICC Current per Control voltage and VCC levels
1.0 10.0
A A
Notes: 1. Measured by the voltage drop between Dn, HSD, Dn pins at the indicated current through the switch. On Resistance is determined by the lower of the voltage on the two ports. 2. Guaranteed by design.
AC Electrical Characteristics
Unless stated otherwise, typical values are for VCC = 3.3 V at 25C
TA = -40C to +85C Symbol
tON tOFF tPD TBBM OIRR
Parameter
Turn ON Time, OE to output Propagation Delay 1 Break-Before-Make Non-adjacent Channel Crosstalk -3dB Bandwidth
Conditions
VIN = 0.8 V, RL = 50 CL = 5 pF , RL = 50 CL = 5 pF , VIN = 0.8 V, RL = 50 CL = 5 pF , RT = 50 f = 240 MHz , RT = 50 CL = 0 pF , RT = 50 CL = 5 pF ,
VCC (V)
3.0 to 3.6 3.0 to 3.6 3.3 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6
Min.
Typ.
15.0 12.0 0.25
Max. Units
30.0 25.0 ns ns ns 6.5 ns dB dB MHz
Turn OFF Time, OE to output VIN = 0.8 V, RL = 50 CL = 5 pF ,
2.0 -35.0 -55.0 720 550
OFF Isolation (non-adjacent) RT = 50 f = 240 MHz ,
Xtalk BW
Note 1: Guaranteed by design.
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
4
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
USB Hi-Speed Related AC Electrical Characteristics
TA = -40C to +85C Symbol
tSK(O) tSK(P) tJ
Parameter
Channel-to-channel Skew
1
Conditions
CL = 5 pF CL = 5 pF RL = 50, CL = 5 pF, tR = tF = 500 ps at 480 Mbps (PRBS = 215 - 1)
VCC (V)
3.0 to 3.6 3.0 to 3.6 3.0 to 3.6
Min.
Typ.
50.0 20.0 200
Max. Units
ps ps ps
Skew of the Opposite Transitions of the Same Output 1 Total Jitter 1
Note 1: Guaranteed by design.
Capacitance
TA = -40C to +85C Symbol
CIN CON COFF
Parameter
Control Pin Input Capacitance D1n, D2n, Dn ON Capacitance D1n, D2n, OFF Capacitance VCC = 0V
Conditions
VCC = 3.3 V, OE = 0V VCC and OE = 3.3 V
Min.
Typ.
1.0 3.7 1.7
Max. Units
pF pF pF
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
5
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Test Circuits and Timing Diagrams
Gain vs. Frequency
OFF Isolation
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
6
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Crosstalk
IDTUS8031
On Resistance
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
7
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
IDTUS8031
OFF Leakage
IDTUS8031
AC Test Circuit Load
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
8
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Switch Propagation Delay Waveforms (TPD)
Turn ON / Turn OFF Waveform (TON / TOFF)
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
9
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Break-Before-Make (TBBM)
Switch Skew Tests
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
10
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
IDTUS8031
Bandwidth
IDTUS8031
Channel OFF Isolation
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
11
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
IDTUS8031
Non-Adjacent Channel-to-Channel Crosstalk
IDTUS8031
F = 240 MHz
Channel ON Capacitance
IDTUS8031
F = 240 MHz
Channel OFF Capacitance
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
12
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Package Outline and Package Dimensions (10-pin MLP)
SYMBOL A A1 A3 b c D E E1 N ND NE e aaa bbb MIN 0.51 0.00 0.15 0.09 Millimeters NOM MAX 0.55 0.60 0.02 0.05 0.15 ref 0.20 0.25 0.20 1.40 BASIC 1.80 BASIC 6.20 10 3 2 0.40 0.15 0.10 Notes 1, 2 1, 2 1, 2
6.00
3 5 5
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
13
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Package Outline and Package Dimensions (8-pin MSOP, 3.00 mm Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters Symbol Min Max Inches* Min Max
8
E1 IN D E X AREA
E
1
2
D
A A1 A2 b C D E E1 e L aaa
-1.10 0 0.15 0.79 0.97 0.22 0.38 0.08 0.23 3.00 BASIC 4.90 BASIC 3.00 BASIC 0.65 Basic 0.40 0.80 0 8 0.10
-0.043 0 0.006 0.031 0.038 0.008 0.015 0.003 0.009 0.118 BASIC 0.193 BASIC 0.118 BASIC 0.0256 Basic 0.016 0.032 0 8 0.004
*For reference only. Controlling dimensions in mm.
A 2 A 1 A
c
-Ce
b S E A T IN G P LA N E L
aaa
C
Ordering Information
Part / Order Number
US8031DVGI US8031DVGI8 US8031NDGI US8031NDGI8
Marking
TBD TBD TBD TBD
Shipping Packaging
Tubes Tape and Reel Tubes Tape and Reel
Package
8-pin MSOP 8-pin MSOP 10-pin MLP 10-pin MLP
Temperature
-40C to +85C -40C to +85C -40C to +85C -40C to +85C
Parts that are ordered with a "G" after the two-letter package code are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
14
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
Revision History
Rev.
E F
Originator
Date
02/06/09 03/02/09
Description of Change
Added 10-pin MLP package. Moved HSD-/+ pins on pinout diagram to pin 1 and 2 respectively.
IDTTM LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
15
IDTUS8031
REV F 030209
IDTUS8031 LOW POWER DUAL SPST HI-SPEED USB 2.0 (480MBPS) SWITCH
USB SWITCH
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www.IDT.com
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800-345-7015 408-284-8200 Fax: 408-284-2775
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www.idt.com/go/clockhelp
Corporate Headquarters
Integrated Device Technology, Inc. www.idt.com
(c) 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

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