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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
March 2006
FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Features
Low On capacitance, 6.0pF (typical) Low On resistance, 6.5 (typical) Low power consumption (1A maximum)
General Description
The FSUSB30 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 (480Mbps) source or a Hi-Speed and Full Speed (12Mbps) source. The FSUSB31 is compatible with the requirements of USB2.0 and features an extremely low On Capacitance (CON) of 6.0pF. The wide bandwidth of this device (>720MHz), 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 FSUSB31 contains special circuitry on the D+ / Dpins 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 Ultra-Portable applications such as cell phones, allowing for direct interface with the General Purpose I/Os of the baseband processor. Other applications include port isolation and switching in portable cell phones, PDAs, digital cameras, printers, and notebook computers.

- 10A maximum ICCT over and expanded control voltage range (VIN = 2.6V, VCC = 4.3V) Wide -3dB bandwidth, > 720MHz 8K I/O to GND ESD protection Power OFF protection when VCC = 0V, D+ / D- pins can tolerate up to 4.3V Packaged in: - Pb-Free 8-lead MicroPakTM (1.6mm x 1.6mm) - Pb-Free 8-lead US-8 (preliminary)
Applications
Cell phone, PDA, Digital Camera, and Notebook LCD Monitor, TV, and Set-top Box
Ordering Information
Order Number
FSUSB31K8X (Preliminary) FSUSB31L8X
Package Number
MAB08A MAC08A
Package Description
Pb-Free 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide Pb-Free 8-Lead MicroPak, 1.6 mm Wide
Pb-Free package per JEDEC J-STD-020B.
Application Diagram
VCC FSUSB31 D+ Base Band Processor or FS USB Controller USB Connector D-
OE HS USB Controller
MicroPak is a trademark of Fairchild Semiconductor Corporation.
(c)2006 Fairchild Semiconductor Corporation
1
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FSUSB31 Rev. 1.0.3
FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Connection Diagrams
Pad Assignments for MicroPak
HSD- NC D-
Analog Symbol
HSD+ D+ HSD- D-
7
6
5
VCC
8
4
GND
OE
Control
1
2
3
OE
HSD+
D+
Pin Descriptions
Pin Name
OE D+, D-, HSD+, HSD- NC
Description
Bus Switch Enable Data Ports No Connect
(Top View)
Pin Assignment for US8
NC HSD- D- GND VCC
1
8
Truth Table
2 3 4 7 6 5
OE HSD+ D+
OE
H L
Function
Disconnect D+, D- = HSD
(Top Through View)
2 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Absolute Maximum Ratings
The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation.)
Symbol
VCC VS VIN Supply Voltage DC Input Voltage(1) DC Switch Voltage(1) HSD D+, D- DC Input Diode Current DC Output Current Storage Temperature ESD (Human Body Model) All Pins I/O to GND
Parameter
Rating
-0.5V to +4.6V -0.5V to +4.6V -0.5V to VCC + 0.3V -0.5V to +4.6V -50mA 50mA -65C to +150C 7.5kV 8kV
Recommended Operating Conditions(2)
Symbol
VCC VIN Supply Voltage Control Input Voltage Switch Input Voltage Operating Temperature
Parameter
Rating
3.0V to 4.3V 0V to VCC 0V to VCC -40C to +85C
Notes: 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. 2. Control input must be held HIGH or LOW and it must not float.
3 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
DC Electrical Characteristics
(All typical values are @ 25C unless otherwise specified.)
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-) Switch On Resistance3 Delta RON4 RON Flatness
3
Conditions
IIN = -18mA
VCC (V)
3.0 3.0 to 3.6 4.3 3.0 to 3.6 4.3
Min
1.3 1.7
Typ
Max
-1.2
Units
V V
0.5 0.7 -1.0 -2.0 -2.0 6.5 0.35 2.0 1.0 10.0 1.0 2.0 2.0 10.0
V A A A A A
VIN = 0V to VCC 0 HSD VCC VIN = 0.0V to 4.3V, VCC = 0V VIN = 0.4V, ION = -8mA VIN = 0.4V, ION = -8mA VIN = 0.0V - 1.0V, ION = -8mA
4.3 4.3 0 3.0 3.0 3.0 4.3 4.3
VIN = 0.0V or VCC, IOUT = 0 Increase in ICC Current per VIN = 2.6V, VCC = 4.3V Control Voltage and VCC Levels
Quiescent Supply Current
AC Electrical Characteristics
(All typical values are for VCC = 3.3V @ 25C unless otherwise specified.)
TA = -40C to +85C Symbol
tON tOFF tPD TBBM OIRR Xtalk BW
Parameter
Turn On Time, OE to Output Turn OFF Time. OE to Output Propagation Delay4 Break-Before-Make OFF Isolation (Non-Adjacent) Non-Adjacent Channel Crosstalk -3dB Bandwidth
Conditions
VIN = 0.8V, RL = 50, CL = 5pF VIN = 0.8V, RL = 50, CL = 5pF RL = 50, CL = 5pF RL = 50, CL = 5pF, VIN = 0.8V RT = 50, f = 240MHz RT = 50, f = 240MHz RT = 50, CL = 0pF RT = 50, CL = 5pF
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
30.0 25.0
Figure Units Number
ns ns ns Figure 8 Figure 8 Figure 6 Figure 7 Figure 9 Figure 12 Figure 13 Figure 11
2.0 -35.0 -55.0 720 550
6.5
ns dB dB MHz
Notes: 3. 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. 4. Guaranteed by characterization.
4 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
USB Hi-Speed Related AC Electrical Characteristics
Symbol
tSK(O) tSK(P)
Parameter
Channel-to-Channel Skew5 Skew of Opposite Transitions of the Same Output5 Total Jitter5
Conditions
CL = 5pF CL = 5pF
VCC (V)
3.0 to 3.6 3.0 to 3.6
TA = -40C to +85C Min Typ
50.0 20.0
Max
Units
ps ps
Figure Number
Figure 6 Figure 10 Figure 6 Figure 10
tJ
RL = 50, CL = 5pF, tR = tF = 500ps at 480 Mbps (PRBS = 215 - 1)
3.0 to 3.6
200
ps
Notes: 5. Guaranteed by design.
Capacitance
Symbol
CIN CON COFF
Parameter
Control Pin Input Capacitance D1n, D2n, Dn ON Capacitance D1n, D2n OFF Capacitance
Conditions
VCC = 0V VCC = 3.3, OE = 0V VCC and OE = 3.3
TA = -40C to +85C Min Typ
1.0 6.0 1.7
Max
Units
pF pF pF
Figure Number
Figure 15 Figure 14 Figure 15
5 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Typical Characteristics
0 -1 Off Isolation (dB) -2 Gain (dB) -3 -4 -5 -6 -7 -8 1 10 100 Frequency (MHz) 1000 10000
CL = 0pF VCC = 3.3V
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 1 10 100 1000
VCC = 3.3V
Frequency (MHz)
Figure 1. Gain vs. Frequency
Figure 2. OFF Isolation
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 1
VCC = 3.3V
Crosstalk (dB)
10
100
1000
Frequency (MHz)
Figure 3. Crosstalk
6 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Test Diagrams
VON FSUSB31 NC Dn VIN GND OE VS = 0 to VCC RON = VON / ION GND ION OE GND VS = 0 or VCC Each switch port is tested separately. IDn(OFF)
FSUSB31 HSD
A
VIN
Figure 4. On Resistance
Figure 5. OFF Leakage
FSUSB31 HSD D+, D- VIN GND RS CL* GND VOE GND RL, RS, and CL are functions of the application environment (see AC Electrical tables for specific values). *CL includes test fixture and stray capacitance. VOH Output: D+, D- VOL tPLH tPHL
50% 50%
tRISE = 500ps RL VOUT 800mV Input: HSD+, HSD- 400mV
90% 50% 10% 90% 50%
tFALL = 500ps
10%
Figure 6. AC Test Circuit Load
Figure 7. Switch Propagation Delay Waveforms (TPD)
tRISE = 2.5ns VCC Input - OE GND
10% 90% VCC/2 90% VCC/2
tFALL = 2.5ns
10%
VOH Output - VOUT VOL tON
90%
90%
tOFF
Figure 8. Turn ON / Turn OFF Waveform (TON / TOFF)
7 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
VCC VCC VO HSDn D+, D- HSDn RL S Control Input GND VOUT CL* VOUT Control Input VCC
50%
0V
tR = tF = 2.5ns (10-90%)
0.9 x VOUT tD
*CL includes test fixture and stray capacitance.
Figure 9. Break-before-Make (TBBM)
tRISE = 500ps 800mV Input: D+, D- 400mV tRISE = 500ps 800mV Input: HSDn+ HSDn- 400mV
10% 90% 50% 10% 90% 50% 90% 50%
tFALL = 500ps
10%
tFALL = 500ps VOH Output1: HSD1+ HSD1- VOL
10%
90% 50%
50%
50%
tPLH1
tPHL1
VOH Output: D+, D- VOL tPLH TSK(P) = | tPHL - tPLH | Pulse Skew, TSK(P) tPHL
50% 50%
VOH Output1: D2+, D2- VOL tPLH2 tPHL2
50% 50%
TSK(O) = | tPLH1 - tPLH2 | or | tPHL1 - tPHL2 | Output Skew, TSK(OUT)
Figure 10. Switch Skew Tests
Network Analyzer FSUSB31 VIN GND VOE GND VOUT GND RS and RT are functions of the application environment (See AC Electrical Tables for specific values). RT GND RS VS GND
Figure 11. Bandwidth
8 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Network Analyzer FSUSB31 VIN RT VOE GND GND GND OFF-Isolation = 20 Log (VOUT / VIN) VOUT RT GND GND RS VS GND
Figure 12. Channel OFF Isolation
NC FSUSB31
Network Analyzer RS VIN GND VS GND RT GND
VOE GND
GND RS and RT are functions of the application environment (50, 75 or 100) Crosstalk = 20 Log (VOUT / VIN)
RT GND
VOUT
Figure 13. Non-Adjacent Channel-to-Channel Crosstalk
Capacitance Meter F = 1MHz
Dn
FSUSB31 OE VOE = 0 or VCC Capacitance Meter F = 1MHz
Dn
FSUSB31 OE VOE = 0 or VCC HSDn
HSDn
Figure 14. Channel ON Capacitance
Figure 15. Channel OFF Capacitance
9 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Tape and Reel Specification
Tape Format for MircoPak Package Designator
L8X
Tape Section
Leader (Start End) Carrier Trailer (Hub End)
Number Cavities
125 (typ) 5000 75 (typ)
Cavity Status
Empty Filled Empty
Cover Tape Status
Sealed Sealed Sealed
Tape Dimension inches (millimeters)
10 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Reel Dimension for MircoPak inches (millimeters)
Tape Size
8 mm
A
7.0 (177.8)
B
0.059 (1.50)
C
0.512 (13.00)
D
0.795 (20.20)
N
2.165 (55.00)
W1
0.331 + 0.059/-0.000 (8.40 + 1.50/-0.00)
W2
0.567 (14.40)
W3
W1 + 0.078/-0.039 (W1 + 2.00/-1.00)
11 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Physical Dimensions inches (millimeters) unless otherwise noted
Pb-Free 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide Package Number MAB08A
12 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
Pb-Free 8-Lead MicroPak, 1.6 mm Wide Package Number MAC08A
13 FSUSB31 Rev. 1.0.3
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FSUSB31 Low Power Dual SPST Hi-Speed USB 2.0 (480Mbps) Switch
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
ACExTM FAST(R) ActiveArrayTM FASTrTM BottomlessTM FPSTM Build it NowTM FRFETTM CoolFETTM GlobalOptoisolatorTM CROSSVOLTTM GTOTM DOMETM HiSeCTM EcoSPARKTM I2CTM 2 E CMOSTM i-LoTM EnSignaTM ImpliedDisconnectTM FACTTM IntelliMAXTM FACT Quiet SeriesTM Across the board. Around the world.TM The Power Franchise(R) Programmable Active DroopTM
DISCLAIMER
ISOPLANARTM LittleFETTM MICROCOUPLERTM MicroFETTM MicroPakTM MICROWIRETM MSXTM MSXProTM OCXTM OCXProTM OPTOLOGIC(R) OPTOPLANARTM PACMANTM POPTM Power247TM PowerEdgeTM
PowerSaverTM PowerTrench(R) QFET(R) QSTM QT OptoelectronicsTM Quiet SeriesTM RapidConfigureTM RapidConnectTM SerDesTM ScalarPumpTM SILENT SWITCHER(R) SMART STARTTM SPMTM StealthTM SuperFETTM SuperSOTTM-3
SuperSOTTM-6 SuperSOTTM-8 SyncFETTM TCMTM TinyLogic(R) TINYOPTOTM TruTranslationTM UHCTM UltraFET(R) UniFETTM VCXTM WireTM
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILDiS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component is any component of a life 1. Life support devices or systems are devices or support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I18
14 FSUSB31 Rev. 1.0.3
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