x9428wsi-2.7 Intersil Corporation, x9428wsi-2.7 Datasheet - Page 19

• Manufacturer Part Number: x9428wsi-2.7
• Description: Single Digitally Controlled Potentiometer Xdcp?
• Manufacturer: Intersil Corporation

Application Circuits (continued)
V
S
V
S
R
Inverting Amplifier
R
R
1
V
-1/2 ≤ G ≤ +1/2
1
3
V
G = - R
O
O
Attenuator
= G V
= G V
R
R
4
2
2
19
S
/R
S
1
All R
–
+
–
+
–
+
S
R
= 10kΩ
2
}
}
R
R
A
B
V
O
V
frequency ∝ R
amplitude ∝ R
O
Function Generator
R
2
X9428
A
1
, R
, R
2
B
, C
R
1
V
Z
V
S
IN
S
Z
IN
= R
C
Equivalent L-R Circuit
(R
1
C
2
R
–
+
1
+ s R
+ R
G
fc = 1/(2πRC)
Filter
O
C
3
= 1 + R
2
) >> R
R
R
(R
1
3
1
+ R
R
2
2
1
/R
+
–
R
3
) C
1
2
1
+
–
= R
R
2
2
+ s Leq
V
O
April 26, 2006
FN8197.1