參數(shù)資料
型號(hào): ML2111
廠商: Fairchild Semiconductor Corporation
英文描述: Universal Dual High Frequency Filter(通用雙通道高頻濾波器)
中文描述: 通用雙高頻濾波器(通用雙通道高頻濾波器)
文件頁數(shù): 21/26頁
文件大?。?/td> 440K
代理商: ML2111
ML2111
21
Figure 32. Cascasding 2 Sections Connected in Mode 1, each with Q = 10, to obtain a Bandpass Filter with Q = 15.5,
and f
0
= 150kHz (f
CLK
= 7.5MHz).
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
LP
A
BP
A
HP
A
INV
A
S1
A
S
A/B
V
A
+
V
D
+
LSh
CLK
A
LP
B
BP
B
HP
B
INV
B
S1
B
AGND
V
A
-
V
D
-
50/100
CLK
B
R31
R21
R32
R22
V
IN
1V
p-p
5V
Clock 5MHz
5V
-5V
V
OUT
1% RESISTOR VALUES
R21 = 3746
R31 = 2003
R22 = 1996
R32 = 2604
Q1 = 0.541
Q2 = 1.302
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
LP
A
BP
A
HP
A
INV
A
S1
A
S
A/B
V
A
+
V
D
+
LSh
CLK
A
LP
B
BP
B
HP
B
INV
B
S1
B
AGND
V
A
-
V
D
-
50/100
CLK
B
R31
R21
R32
R22
V
2.82V
p-p
(1V
RMS
)
5V
Clock 7.5MHz
5V
-5V
V
OUT
RESISTOR VALUES
R11 = 20k
R21 = 2k
R31 = 20k
R12 = 20k
R22 = 2k
R32 = 20k
R11
R12
Q1 = Q2 = 10
Figure 31. 4th Order, 100kHz Lowpass Butterworth Filter Obtained by Cascading Two Sections in Mode 1a.
0
–10
–20
–30
–40
–50
–60
–70
–80
V
O
/
I
FREQUENCY (Hz)
10k
100k
1M
101,777Hz
–3.058dB
0
–10
–20
–30
–40
–50
–60
–70
–80
V
O
/
I
FREQUENCY (Hz)
10k
100k
1M
149,871Hz
–0.31dB
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