Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA201 Rev. 1.2.2 13
FSA201

USB2.0 Full-Speed and Audio Switches with Negative Signal Capability
Test Diagrams
Dn or R/L
D+/R or D-/L
V
CNTRL
= fn (V
audio
and V
bus
)
I
ON
V
ON
R
ON
= V
ON
/ I
ON
GND
V
SW
GND
I
VV
V
= fn
(
V
audio
and V
bus
)
D+/R or D-/L
D+, D-
or R/L
A
I
(OFF)
V
sw
GND
CNTRL
-
-
A
I
V
GND
A
I
A
I
V
GND
V
Figure 13. On Resistance Figure 14. Off Leakage
V
CNTRL
= fn (V
audio
and V
bus
)
I
A(ON)
V
sw
GND
A
D+, D- or R/L
D+/R or
D-/L
VVV
A
-
R
L
, R
S
and C
L
are function of application
environment (see AC Tables for specific values)
C
L
includes test fixture and stray capacitance
GND
R
S
V
CNTRL
= fn (V
audio
and V
bus
V
sw
GND
R
L
C
L
GND
V
OUT
D+, D- or R,L
D+/R or D-/L
S
)
V
GND
V
GND
-
-
Figure 15. On Leakage Figure 16. AC Test Circuit Load
-V
ASel
t
RISE
= 2.5ns
GND
3V
90% 90%
10%10%
t
FALL
= 2.5ns
50%
50%
Output - V
OUT
90%
V
OH
V
OL
t
ON
t
OFF
90%
Input -
3
-
V
CNTRL
= fn (V
audio
and V
bus
)
Input - V
CNTRL
t
RISE
= 1µs
GND
Vbus
Vth(max)
90%
10%10%
t
FALL
= 1µs
Output - V
OUT
90%
V
OH
V
OL
t
ON
t
OFF
90%
Vth(min)
Vth = V
busth
or V
audioth
-
)
Figure 17. Turn-On / Turn-Off
Waveforms (A
SEL
)
Figure 18. Turn-On / Turn-Off Waveforms (USB/Audio)