Data Sheet

© 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSUSB22 • Rev. 1.0.3 7
FSUSB22 — Low-Power, 2-Port, High-Speed USB 2.0 (480Mbps) Switch
AC Loadings and Waveforms
B
1
B
2
GND
Control
A
10pF
50Ω
S
/
OE
Notes: Input driven by 50Ω source terminated in 50Ω.
CL includes load and stray capacitance.
Input PRR-1.0MHz, t
W
= 500ns.
Figure 9. AC Test Circuit
90%
10% 10%
90%
90% 90%
3.0V
GND
V
OH
V
OL
t
OFF
t
ON
t
r
= 2.5ns t
f
= 2.5ns
1.5V
SELECT
INPUT
OUTPUT
1.5V
Figure 10. AC Waveforms
S
B
2
B
1
A
50Ω
50Ω
/OE
Control
S
B
1
A
5
0
100Ω
100Ω
/OE
Control
50Ω
Figure 11. Off Isolation Test Figure 12. Crosstalk Test