Data Sheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch
FSUSB31 Rev. 1.1.0 7
Test Diagrams
Figure 9. On Resistance Figure 10. Off Leakage
Figure 11. AC Test Circuit Load Figure 12. Switch Propagation Delay Waveforms
(t
PD
)
Figure 13. Turn On / Turn Off Waveform (t
ON
/ t
OFF
)
GND
HSD
I
ON
V
ON
V
IN
ID
n(OFF)
V
S
= 0 or V
CC
FSUSB31
NC
A
GND
GND
V
IN
Dn
OE
V
S
= 0 to V
CC
FSUSB31
Each switch port is tested separately.R
ON
= V
ON
/ I
ON
OE
t
RISE
= 500ps
t
PLH
HSD+,
HSD–
Input:
Output: D+, D–
t
FALL
= 500ps
V
OH
R
L
R
S
C
L
*
HSD
V
IN
V
OE
D+, D–
FSUSB31
GND
90%
50% 50%
90%
10% 10%
50%
GND
GND
t
PHL
50%
V
OL
400mV
0V
V
OUT
R
L
, R
S
, and C
L
are functions of the application environment
(see AC Electrical tables for specific values).
*C
L
includes test fixture and stray capacitance.
t
RISE
= 2.5ns
t
ON
t
OFF
Input – OE
Output – V
OUT
t
FALL
= 2.5ns
V
OH
90%
V
CC
/2 V
CC
/2
90%
10% 10%
90%90%
V
OL
V
CC
GND