Data Sheet

© 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSUSB11 • Rev. 1.0.4 5
FSUSB11 — Low-Power, Full-Speed (12Mbps) Switch
AC Electrical Characteristics
Unless otherwise specified, typical values are at +25°C.
Symbol Parameter Conditions V
CC
(V)
T
A
=+25°C
T
A
=-40 to
+85°C
Units Figure
Min. Typ. Max. Min. Max.
t
ON
Turn-on Time
S-to-Bus B
D
1
or D
2
=1.5V,
R
L
=50Ω, C
L
=35pF
2.7 to 3.6 50 60
ns Figure 5
D
1
or D
2
=3.0V,
R
L
=50Ω, C
L
=35pF
4.5 to 5.5 35 30
t
OFF
Turn-off Time
S-to-Bus B
D
1
or D
2
=1.5V,
R
L
=50Ω, C
L
=35pF
2.7 to 3.6 20 20
ns Figure 5
D
1
or D
2
=3.0V,
R
L
=50Ω, C
L
=35pF
4.5 to 5.5 15
t
BBM
Break-Before-Make
Time
D
1
or D
2
=1.5V,
R
L
=50Ω, C
L
=35pF
2.7 to 3.6 1
ns Figure 6
D
1
or D
2
=3.0V,
R
L
=50Ω, C
L
=35pF
4.5 to 5.5 20 1
Q Charge Injection
C
L
=1.0nF,
V
GEN
=0V, R
GEN
=0Ω
2.7 to 3.6 20
pC Figure 8
4.5 to 5.5 10
O
IRR
Off Isolation
f=1MHz, R
L
=50Ω
2.7 to 3.6 -70
dB Figure 7
4.5 to 5.5 -70
X
TALK
Non-Adjacent
Channel Crosstalk
f=1MHz, R
L
=50Ω
2.7 to 3.6 -75
dB Figure 7
4.5 to 5.5 -75
BW -3dB Bandwidth
R
L
=50Ω
2.7 to 3.6 350
MHz Figure 10
4.5 to 5.5 350
USB Related AC Electrical Characteristics
Unless otherwise specified, typical values are at 25°C.
Symbol Parameter Conditions V
CC
(V)
T
A
=+25°C
Units Figure
Min. Typ. Max.
t
SK(O)
Skew
R
S
=39, C
L
=50pF, t
R
=t
F
=12ns
at 12Mbps
2.7 to 3.6 0.15
ns Figure 11
4.5 to 5.5 0.15
t
SK(P)
Rising/Fall Time
Mismatch
(Duty Cycle=50%)
2.7 to 3.6 30
ps Figure 12
4.5 to 5.5 20
T
J
Total Jitter
R
S
=39, C
L
=50pF, t
R
=t
F
=12ns at
12Mbps (PRBS=2
15
1)
2.7 to 3.6 1.7
ps Figure 12
4.5 to 5.5 1.6
Capacitance
Symbol Parameter Conditions V
CC
(V)
T
A
=+25°C
Units Figure
Min. Typ. Max.
C
IN
Control Pin Input Capacitance f=1MHz 0.0 3.5 pF Figure 9
C
OFF
D
n
Port Off Capacitance f=1MHz 4.5 12.0 pF Figure 9
C
ON
D Port On Capacitance f=1MHz 4.5 40.0 pF Figure 9