Appendix: Analog Switch Array Measurements
same integrated circuit
Xi
Any "ON"
Switch
R
S
=50Ω
Yj
Xi
Any other
"ON" Switch
Yj
V
DD
= 5V, V
SS
= 0V, V
EE
= -7V
Crosstalk = 20LOG V
OUT
V
Xi
R
L
R
L
V
INA
=2V
pp
R
L
V
OUT
i≠j
Figure A.5 - Crosstalk (X
talk
) Measurement †
Digital Control Inputs
Xi
Any "ON"
Switch
R
IN
=1kΩ
R
L
=10kΩ
V
OUT
Yj
Digital +3V
Input
0V
V
OUT
0V
CX
talk
V
DD
= 5V, V
SS
= 0V, V
EE
= -7V
i can be equal to j
Figure A.6 - Control Input Crosstalk to Switch (CX
talk
) †
V
DD
Digital Control Inputs
1KΩ
Xi
Any Switch
50pF
-7V
-7V
-7V
Yj
V
OUT
V
DD
Xi
Any Switch
1KΩ
50pF
V
OUT
Digital Control Inputs
Yj
Digital
Inputs
(V
IH
) 5V
50%
(V
IL
) 0V
50%
t
D
/t
S
/t
R
(V
IH
) 5V
50%
(V
IL
) 0V
50%
t
D
/t
S
/t
R
50%
(OFF)-7V
b) R
L
at -7V
t
D
/t
S
/t
R
t
D
/t
S
/t
R
(ON) V
DD
50%
10%
V
OUT
(OFF)V
DD
(ON) -7V
a) R
L
at V
DD
90%
V
DD
= 5V, V
SS
= 0V, V
EE
= -7V
i can be equal to j
MT8809: V
IH
= 5V, V
IL
= -7V
MT8812: V
IH
= 7V, V
IL
= -7V
Figure A.7 - Control Memory Timing Measurements †
Notes:
† Test Conditions for MT8809 and MT8812 are respectively: V
DD
=5V, V
DC
=0V, V
SS
=-7V and V
DD
=7V, V
DC
=0V, V
SS
=-7V.
All Xi and Yj analog I/O pins can be interchanged for all measurements.
3-73
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
