Datasheet

© 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA2258 • Rev. 1.0.5 8
FSA2258 — Low-Voltage, Dual-SPDT (0.8

) Analog Switch with 16kV ESD
Test Diagrams (Continued)
V
OUT
GND
GND
R
T
GND
GND
V
S
R
S
Network Analyzer
R
T
GND
R
S
and R
T
are functions of the application
environment (50, 75, or 100 ).
V
Sel
GND
CROSSTALK = 20 Log (V
OUT
/V
IN
)
V
IN
Figure 11. Adjacent Channel Crosstalk
R
S
V
OUT
Q = V
OUT
/ C
L
V
OUT
V
OUT
V
CC
0V
Input – V
SEL
Generator
GND
V
S
C
L
V
SEL
V
IN
B
nS
n
GND
C
L
includes test fixture and stray capacitance
GND
Off On Off
mA
Figure 12. Charge Injection Test
V
Sel
= 0 or V
c
c
nB
n
Capacitance
Meter
nS
n
nB
n
f=1MHz
V
Sel
= 0 orV cc
nB
n
Capacitance
Meter
nS
n
nB
n
f=1MHz
Figure 13. Channel Off Capacitance Figure 14. Channel On Capacitance
V
OUT
GND
GND
R
T
GND
GND
V
S
R
S
Audio Analyzer
V
CNTRL
GND
V
IN
R
S
and R
T
are functions of the application
environment (see AC Tables for specific values).
V
Sel
= 0 or V
cc
Figure 15. Total Harmonic Distortion