
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSUSB74 Rev. 1.0.2
6
FSUSB74
–
High-Speed
USB
Multiplexer
/
S
witch
Test Diagrams
Figure 5. On Resistance
Figure 6. Off Leakage
Figure 7. AC Test Circuit Load
Figure 8. Turn-On / Turn-Off Waveforms
Figure 9. Propagation Delay (tRtF – 500ps)
Figure 10. Skew Test Waveforms
tSK(P) = | tPLH- – tPHL- | or | tPLH+ – tPHL+ |
tSK(I) = | tPLH- – tPHL+ | or | tPLH+ – tPHL- |
Select
HSDn
Dn
VSel= 0 orVcc
ION
VON
RON = VON /ION
GND
VSW
GND
SW
Select
VSel= 0 orVcc
NC
A
IDn(OFF)
VSW
GND
V
Vcc
**Each switch port is tested separately
R
L ,R
S ,and CL are functions of the application
environment (see AC Tables for specific values)
C
L includes test fixture and stray capacitance.
RL
CL
HSDn
Dn
GND
RS
VSel
VSW
GND
V
OUT
V
OUT
Input
Output
VOH
VOL
50%
400mV
tPHL
tPLH
0V
t
RISE
= 750ps
GND
0.4V
90%
10%
t
FALL
= 750ps
50%
Input
– V
D+/D
-
Output
- V
OUT
50%
V
OH
t
pHL+
–V
D+/D
-
Output
- V
OUT
V
OL
t
pLH-
t
pLH+
t
pHL-
+
-