FSUSB11 Low-Power Full-Speed USB (12Mbps) Switch
October 2006
FSUSB11
Low-Power Full-Speed USB (12Mbps) Switch
Features
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Space saving MicroPak™ Pb-free packaging
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Description
The FSUSB11 is a high-performance, dual Single-Pole
Double-Throw (SPDT) switch designed for switching
USB 1.1 signals. The device features ultra-low on resis-
tance (R
ON
) of 1.15Ω maximum at 4.5V V
CC
and 4.3Ω at
2.7V supply. High bandwidth and ultra low (R
ON
) make
this switch able to pass both USB low- and full-speed
signal with minimum signal distortion. The device is fabri-
cated with sub-micron CMOS technology to achieve fast
switching speeds and designed for break-before-make
operation. The select input is TTL-level compatible.
(1.6 x 2.1mm)
USB 1.1 signal switching compliant
-3db bandwidth: >350MHz
Maximum 1.15Ω R
ON
at 4.5V V
CC
and 4Ω for 2.7V supply
0.3Ω maximum R
ON
flatness for +5V supply
Broad V
CC
operating range: 1.65V to 5.5V
Fast turn-on and turn-off time
Break-before-make enable circuitry
Over-voltage tolerant, TTL-compatible control input
Applications
■
Cell Phone
■
PDS
■
Digital Camera
■
Notebook
Ordering Information
Part Number
FSUSB11L10X
Package
10-Lead MicroPak, 1.6 x 2.1mm
Top
Mark
ET
FSUSB11
FSUSB11
Pb-
Free
Yes
Yes
Yes
Packing Method
5K units on tape and reel
2500 units on tape andreel
3K units on tape and reel
FSUSB11MTCX 14-Lead Thin Shrink Small Outline Package
(TSSOP), JEDEC MO-153, 4.4mm Wide
FSUSB11MUX
(Preliminary)
10-Lead Molded Small Outline Package
(MSOP), JEDEC MO-187, 3.0mm
Pb-Free package per JEDEC J-STD-020B.
Block Diagram
MicroPak™ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation
FSUSB11 Rev. 1.0.2
www.fairchildsemi.com
FSUSB11 Low-Power Full-Speed USB (12Mbps) Switch
Connection Diagrams
Figure 1. Pin Assingments for TSSOP
(Top View)
Figure 2. Pad Assignments for Micropak
(Top View)
Analog Symbols
D2-
S1
V
CC
D+
D
1+
1
2
3
4
5
10
9
8
7
6
D1-
D-
GND
S2
D
2+
Figure 3. Pin Assignments for MSOP
(Top Through View)
Figure 4. Analog Symbols
(Top Through View)
Truth Table
Control Imputs
Low Logic Level
High Logic Level
Pin Desciption
Function
D
1
Connected to D+/D-
D
2
Connected to D+/D-
Pin names
D,D
1
,D
2
S
Function
Data Ports
Control Imput
© 2005 Fairchild Semiconductor Corporation
FSUSB11 Rev. 1.0.2
www.fairchildsemi.com
2
FSUSB11 Low-Power Full-Speed USB (12Mbps) 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 defines the
conditions for actual device operation.
Symbol
V
CC
V
S
V
IN
I
IK
I
SW
I
SWPEAK
T
STG
T
J
T
L
ESD
Supply Voltage
(1)
Switch Voltage
(1)
Input Voltage
Input Diode Current
Switch Current
Parameter
Min.
-0.5
-0.5
-0.5
-50
Max.
+6.0
V
CC
to +0.5
+6.0
200
400
Unit
V
V
V
mA
mA
Peak Switch Current (Pulsed at 1ms Duration,<10% Duty
Cycle)
Storage Temperature Range
Maximum Junction Temperature
Lead Temperature (Soldering, 10 seconds)
Human Body Model
-65
+150
+150
+260
8000
°C
°C
°C
V
Notes:
1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are
observed.
Recommended Operating Conditions
Symbol
V
CC
V
IN
V
SW
T
A
Supply Voltage
Control Input Voltage
(2)
Switch Input Voltage
Operating Temperature
Parameter
Min.
1.65
0
0
-40
Max.
5.50
V
CC
V
CC
+85
Unit
V
V
CC
V
CC
°C
Notes:
2. Unused inputs must be held HIGH or LOW. They may not float.
© 2005 Fairchild Semiconductor Corporation
FSUSB11 Rev. 1.0.2
www.fairchildsemi.com
3
FSUSB11 Low-Power Full-Speed USB (12Mbps) Switch
DC Electrical Characteristics
All typical values are at 25°C unless otherwise specified.
V
CC
Symbol
V
IH
V
IL
I
IN
T
A
= + 25 C°
T
A
= -40 °C
to +85 C°
Max. Units
V
0.6
0.8
-1.0
-1.0
1.0
1.0
100
100
4.3
1.30
4.5
3.0
Ω
V
µA
nA
nA
2.0
2.4
Parameter
Input Voltage High
Input Voltage Low
Control Input Leakage
Conditions
(V)
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
5.5
5.5
2.7
4.50
2.7
4.5
4.50
Min. Typ. Max. Min.
V
IN
= 0V to V
CC
A = 1V, 4.5V, B
0
or B
1
=
1V, 4.5V
A = 1V, 4.5V,B
0
or B
1
=
1V, 4.5V or Floating
I
OUT
= 100mA, D
1
or D
2
= 1.5V
I
OUT
= 100 mA, D
1
or D
2
= 3.5V
I
OUT
= 100mA, D
1
or D
2
= 1.5V
I
OUT
= 100mA, D
1
or D
2
= 3.5V
I
OUT
= 100mA, D
1
or D
2
= 3.5V
I
OUT
= 100mA, D
1
or D
2
= 3.5V
I
NO(OFF)
, Off-Leakage Current of
I
NC(OFF)
Port D
1
and D
2
I
A(ON)
On-Leakage Current of
Port D
Switch On Resistance
MicroPak
(3)
R
ON
Switch On Resistance
TSSOP
(3)
On Resistance Matching
Between Channels
MicroPak
(4)
On Resistance Matching
Between Channels
TSSOP
(4)
-50.0
50.0
2.6
0.95
2.8
1.5
0.06
50.0
50.0
4.0
1.15
-100
-100
0.12
0.15
Ω
ΔR
ON
4.50
0.07
0.30
I
OUT
= 100mA, D
1
or D
2
= 0V, 0.75V, 1.5V
R
FLAT(ON)
On Resistance Flatness
(5)
I
OUT
= 100mA,
B
0
or B
1
= 0V, 1V, 2V
I
CC
V
IN
= 0V or V
CC
,
Quiescent Supply Current I
OUT
= 0V
2.7
4.5
3.6
5.5
1.4
0.2
0.1
0.1
0.3
0.5
0.5
0.4
1.0
1.0
Ω
µA
Notes:
3. On resistance is determined by the voltage drop between D and D
n
pins at the indicated current through the switch.
4.
ΔR
ON
= R
ONmax
- R
ONmin
measured at identical V
CC
, temperature, and voltage.
5. Flatness is defined as the difference between the maximum and minimum value of on resistance over the specified
range of conditions.
© 2006 Fairchild Semiconductor Corporation
FSUSB11 Rev. 1.0.2
www.fairchildsemi.com
4
FSUSB11 Low-Power Full-Speed USB (12Mbps) Switch
AC Electrical Characteristics
(Continued)
All typical values are at 25°C unless otherwise specified.
V
CC
Symbol
t
ON
T
A
= +25 C°
50.0
35.0
20.0
15.0
T
A
= -40 C°
to +85 C°
60.0
40.0
30.0
20.0
1.0
ns
ns
Figure
Parameter
Turn-ON Time
Conditions
D
1
or D
2
= 1.5V, R
L
=
50Ω, C
L
= 35 pF
D
1
or D
2
= 3.0V, R
L
=
50Ω, C
L
= 35 pF
D
1
or D
2
= 1.5V, R
L
=
50Ω, C
L
= 35 pF
D
1
or D
2
= 3.0V, R
L
=
50Ω, C
L
= 35 pF
D
1
or D
2
= 1.5V, R
L
=
50Ω, C
L
= 35 pF
D
1
or D
2
= 3.0V, R
L
=
50Ω, C
L
= 35 pF
R
GEN
= 0Ω
f = 1MHz, R
L
= 50Ω
f = 1MHz, R
L
= 50Ω
R
L
= 50Ω
(V)
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
Min. Typ. Max. Min. Max. Units Number
Figure 5
t
OFF
Turn-OFF Time
Figure 5
t
BBM
Break-Before-Make
Time
20.0
20.0
10.0
-70.0
-70.0
-75.0
-75.0
350
350
1.0
ns
Figure 6
Q
OIRR
X
talk
BW
Charge Injection
OFF-Isolation
Crosstalk
-3db Bandwidth
C
L
= 1.0 nF, V
GEN
= 0V, 2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
pC
dB
dB
Figure 8
Figure 7
Figure 7
MHz Figure 10
USB Related AC Electrical Characteristics
All typical values are at 25°C unless otherwise specified.
V
CC
Symbol
t
SKEW
t
M
t
J
Skew
Rising/Fall Time Mis-
match
Total Jitter
T
A
= +25° C
0.15
0.15
10.0
10.0
1.7
1.6
Figure
Parameter
Conditions
R
S
= 39, C
L
= 50 pF,
t
R
= t
F
= 12ns at 12Mbps
(Duty Cycle = 50%)
(V)
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
Min. Typ. Min. Units Number
ns
%
ns
Figure 11
Figure 12
Figure 11
R
S
= 39, C
L
= 50 pF, t
R
= t
F
= 2.7 to 3.6
12ns at 12Mbps (PRBS = 2
15
1) 4.5 to 5.5
Capacitance
V
CC
Symbol
C
IN
C
OFF
C
ON
T
A
= +25 C°
3.5
12.0
40.0
pF
pF
pF
Figure
Figure 9
Figure 9
Figure 9
Parameter
Control Pin Input Capacitance
D
n
Port OFF Capacitance
D Port ON Capacitance
Conditions
f = 1MHz
f = 1MHz
f = 1MHz
(V)
0.0
4.5
4.5
Min. Typ. Max. Units Number
© 2005 Fairchild Semiconductor Corporation
FSUSB11 Rev. 1.0.2
www.fairchildsemi.com
5
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