Data Sheet

© 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSUSB22 • Rev. 1.0.3 8
FSUSB22 — Low-Power, 2-Port, High-Speed USB 2.0 (480Mbps) Switch
AC Loadings and Waveforms
S
B
A
50Ω
/OE
Control
GND
Monitor
Figure 13. Bandwidth Test
Input
400mV
Output
800mV
V
OH
V
OL
t
PHL
t
PLH
50% 50%
50% 50%
Figure 14. Propagation Delay
Input
Output
800mV
400mV
V
OH
50%
50%50%
50%
0
V
OL
t
PHL
t
SK(P)
= | t
PHL
- t
PHL
|
t
PLH
Figure 15. Pulse Skew t
SP(P)
Input
Output 1
Output 2
800mV
400mV
50%50%
50% 50%
50%50%
0
t
PHL1
t
PHL2
t
SK(O)
= | t
PLH1
- t
PLH2
| or | t
PHL1
- t
PHL2
|
t
SK(O) t
SK(O)
t
PLH1
t
PLH2
Figure 16. Output Skew t
SK(O)