LTC1062CSW(RevD) 查看數據表（PDF） - Linear Technology
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LTC1062CSW Datasheet PDF : 16 Pages
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TYPICAL APPLICATIO S
Cascading Two LTC1062s to Form a Very
Selective Clock Sweepable Bandpass Filter
R1
10k
VIN
R2
10k 1
FB
2
AGND
8
BOUT
7
OUT
LTC1062
–5V 3 V–
V+ 6
4
5
DIVIDER COSC
RATIO
R′1
10k
5V
R′2
12.5k 1
FB
2
AGND
8
BOUT
7
OUT
LTC1062
–5V 3 V–
V+ 6
4
5
DIVIDER COSC
RATIO
VOUT
5V
fCLK
1062 TA07
Clock Tunable Notch Filter
For Simplicity Use R3 = R4 = R5 = 10k;
R5
R2
=
1.234,
fCLK
fNOTCH
=
79.3
1
R4
R1
VIN
R2 1
FB
8
R3
BOUT
2
AGND
7
OUT
LTC1062
–5V 3 V–
V+ 6
5V
4
5
DIVIDER COSC
fCLK
RATIO
1062 TA08
R5
–
+
VOUT
LTC1062
Frequency Response of the Bandpass Filter
20
10
VS = ±5V
R1 = 1
0
R2
–10
R′1
R′2
=
0.8
–20
VIN = 100mVRMS
–30
–40
–50
–60
–70
–80
–90
0.5 1 1.5 2 2.5 3 3.5 4 4.5
(kHz)
1062 TA09
Frequency Response of the Notch Filter
–10
0
10
20
30
40
50
60
70
100 300 500 700 900 1100
(Hz)
1062 TA10
1062fd
9
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