x9430 Intersil Corporation, x9430 Datasheet - Page 18

• Manufacturer Part Number: x9430
• Description: Dual Digitally Controlled Potentiometer Xdcp ?with Operational Amplifier
• Manufacturer: Intersil Corporation

X9430 – Preliminary Information
Application Circuits (continued)
REV 1.0 6/20/00
V
V
S
S
R
Inverting Amplifier
1
R
R
V
-1/2 ð G ð +1/2
V
G = - R
1
3
O
O
Attenuator
= G V
R
= G V
R
2
4
2
S
/R
S
All R
1
–
+
–
+
–
+
S
R
= 10k:
2
}
}
R
R
A
B
V
O
V
O
frequency µ R
amplitude µ R
Function Generator
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R
2
A
1
, R
, R
2
B
, C
Z
R
IN
Z
Equivalent L-R Circuit
V
V
1
IN
S
S
= R
(R
2
1
+ s R
C
+ R
1
C
R
3
2
) >> R
Characteristics subject to change without notice.
(R
–
+
G
fc = 1/(2pRC)
Filter
O
1
+ R
= 1 + R
C
R
R
2
1
3
3
) C
R
2
1
1
/R
R
+
–
= R
2
1
2
+
–
+ s Leq
R
2
V
O
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