x9259uv24i-2.7c7975 Intersil Corporation, x9259uv24i-2.7c7975 Datasheet - Page 19

• Manufacturer Part Number: x9259uv24i-2.7c7975
• Description: Quad Digitally Controlled Xdcp? Potentiometers
• Manufacturer: Intersil Corporation

Application Circuits (continued)
V
V
S
S
R
Function Generator
Inverting Amplifier
1
R
R
frequency ∝ R
amplitude ∝ R
V
-1/2 ≤ G ≤ +1/2
V
G = - R
1
3
O
O
Attenuator
= G V
R
= G V
R
2
4
2
/R
19
S
S
R
1
–
+
1
–
+
= R
A
–
+
1
, R
, R
R
2
2
2
B
= R
, C
3
}
}
= R
R
R
A
B
4
= 10kΩ
V
O
V
O
R
2
X9259
R
1
Z
V
V
IN
S
S
Z
IN
= R
Equivalent L-R Circuit
C
1
(R
–
+
C
2
R
+ s R
1
G
fc = 1/(2πRC)
C
+ R
O
Filter
= 1 + R
R
R
2
3
1
3
) >> R
(R
1
R
+ R
1
R
+
–
2
2
2
/R
3
1
) C
+
–
1
R
= R
2
2
+ s Leq
V
O
April 13, 2007
FN8169.5