參數(shù)資料
型號: EL5153
廠商: Intersil Corporation
英文描述: 300MHz Amplifiers
中文描述: 300MHz的放大器
文件頁數(shù): 12/14頁
文件大?。?/td> 357K
代理商: EL5153
12
FN7385.3
February 17, 2005
Application Circuits
Sullen Key Low Pass Filter
A common and easy to implement filter taking advantage of
the wide bandwidth, low offset and low power demands of
the EL5152. A derivation of the transfer function is provided
for convenience. (See Figure 32)
Sullen Key High Pass Filter
Again this useful filter benefits from the characteristics of the
EL5152. The transfer function is very similar to the low pass
so only the results are presented. (See Figure 33)
FIGURE 32. SULLEN KEY LOW PASS FILTER
K
3
1
Q
RC
1
wo
K
Holp
C
R
C
R
C
R
C
2
R
C
R
C
R
)
K
1
1
Q
C
R
1
C
R
1
wo
K
Holp
)
C
R
C
R
C
R
)
K
1
((
jw
C
R
1
C
R
w
1
1
)
jw
(
H
1
s
2
C
R
C
R
C
R
)
K
1
((
s
C
R
1
C
R
K
)
H
0
s
C
1
1
Vi
Vo
R
V
2
K
Vo
1
R
Vi
V
V
1
s
C
R
1
2
K
Vo
R
R
1
K
1
1
2
2
1
2
1
2
2
1
1
2
2
1
2
2
2
1
1
1
2
2
1
2
21
2
1
1
1
2
2
2
1
1
1
1
1
2
A
B
=
=
=
+
+
=
=
=
+
+
+
=
+
+
+
+
=
=
+
+
+
=
+
=
Equations simplify if we let all
components be equal R=C
EL5152, EL5153, EL5252, EL5455
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