Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA201 Rev. 1.2.2 16
FSA201

USB2.0 Full-Speed and Audio Switches with Negative Signal Capability
Test Diagrams (Continued)
Capacitance
Meter
f=6MHz
V
CNTRL
=fn (V
AUDIO
andV
BUS
)
Dn or R/L or D+/R or D-/L
Dn or R/L or
D+/R or D-/L
-
Figure 25. Channel Off Capacitance
Capacitance
Meter
f=6MHz
V
CNTRL
=fn(V
audio
andV
bus
Dn or R/L or
D+/R or D-/L
Dn or R/L or
D+/R or D-/L
)
Figure 26. Channel On Capacitance
V
OUT
GND
GND
R
T
GND
GND
V
S
R
S
Audio Analyzer
V
CNTRL
GND
R
S
and R
T
are functions of the application
environment (see AC Tables for specific values)
V
IN
V
CNTRL
=fn (V
audio
and
Vbus
)
OUT
S
Figure 27. Total Harmonic Distortion