ML2111CIP 查看數據表（PDF） - Micro Linear Corporation
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ML2111CIP Datasheet PDF : 26 Pages
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ML2111
R31
R21
VIN
1Vp-p
5V
1
20
LPA
LPB
2
19
BPA
BPB
3
18
HPA
HPB
4
17
INVA INVB
5
16
S1A
S1B
6
15
SA/B AGND
7
14
VA+
VA-
8
13
VD+
VD-
9
12
LSh 50/100
10
CLKA
11
CLKB
VOUT
R32
R22
Q1 = 0.541
Q2 = 1.302
-5V
5V
Clock 5MHz
1% RESISTOR VALUES
R21 = 3746Ω
R31 = 2003Ω
R22 = 1996Ω
R32 = 2604Ω
0
–10
–20
–30
–40
–50
–60
–70
–80
10k
101,777Hz
–3.058dB
100k
1M
FREQUENCY (Hz)
Figure 31. 4th Order, 100kHz Lowpass Butterworth Filter Obtained by Cascading Two Sections in Mode 1a.
VIN
2.82Vp-p
(1VRMS)
R31
R21
R11
5V
1
20
LPA
LPB
2
19
BPA
BPB
3
18
HPA
HPB
4
17
INVA INVB
5
16
S1A
S1B
6
15
SA/B AGND
7
14
VA+
VA-
8
13
VD+
VD-
9
12
LSh 50/100
10
CLKA
11
CLKB
R12
R32
R22
VOUT
Q1 = Q2 = 10
-5V
5V
Clock 7.5MHz
RESISTOR VALUES
R11 = 20kΩ
R21 = 2kΩ
R31 = 20kΩ
R12 = 20kΩ
R22 = 2kΩ
R32 = 20kΩ
0
–10
–20
–30
–40
–50
–60
–70
–80
10k
149,871Hz
–0.31dB
100k
1M
FREQUENCY (Hz)
Figure 32. Cascasding 2 Sections Connected in Mode 1, each with Q = 10, to obtain a Bandpass Filter with Q = 15.5,
and f0 = 150kHz (fCLK = 7.5MHz).
21
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