ML2111CIP View Datasheet(PDF) - Micro Linear Corporation
Part Name
Description
MFG CO.
'ML2111CIP' PDF : 26 Pages View PDF
ML2111
VIN
1Vp-p
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
R22
-5V
5V
Clock 7.51MHz
RESISTOR VALUES
R11 = R21 = R12 = R22 = 2.0kΩ
VOUT
10
0
–10
–20
–30
–40
3–50
–60
–70
10k
166,224Hz
–3.121dB
100k
1M
FREQUENCY (Hz)
Figure 33. Cascading Two Sections in Mode 1d, Each with Q =1, (Independent of Resistor Ratios) to Create a Sharper 4th
Order Lowpass Filter.
VIN
R23
2.82Vp-p
R22
1
20
LPA
LPB
2
19
R31
BPA
BPB
R24 3
18
R21
HPA
HPB
4
17
INVA INVB
R32
5
16
S1A
S1B
6
15
SA/B AGND
R34
7
14
VA+
VA-
8
13
5V
VD+
VD-
-5V
9
12
LSh 50/100
5V
10
CLKA
11
CLKB
Clock 6.5MHz
1% RESISTOR VALUES
R21 = R22 = R23 = R24 = 2kΩ
R31 = 80kΩ
R32 = 4.9kΩ
R34 = 100Ω
VOUT
0
–5
–10
–15
–20
–25
–30
–35
–40
–45
–50
127
129,070Hz
130
133
FREQUENCY (kHz)
Figure 34. Notch Filter with Q = 50 and f0 = 130kHz. This Circuit Uses Side A in Mode 1d and the Side B Op Amp to
Create a Notch Whose Depth is Controlled by R31. The Notch is Created by Subtracting the Bandpass from VIN. The
Bandpass of Side A is Subtracted Using the Op Amp of Side B.
22
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