LTC1060AMJ データシートの表示（PDF） - Linear Technology
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LTC1060AMJ Datasheet PDF : 20 Pages
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ODES OF OPERATIO
LTC1060
R4
R3
R2
R1
VIN
4–
(17)
+
R6
R5
3
N
(18)
5
S1A
(16)
+–
Σ∫
–
2
BP
(19)
1
LP
(20)
∫
SA/B
6 15
1/2 LTC1060
TLC1060 • MOO07
V–
f0
=
fCLK
100(50)
R2
R4
+
R6
R5 + R6
;
fn
=
fCLK
100(50)
R6 ; Q = R3
R5 + R6
R2
R2 + R6
R4 R5 + R6
( H0N1(f
0) = – R2
R1
R6/(R5 + R6)
(R2/R4) + [R6/(R5 + R6)]
; H0N2
f
)fCLK = – R2/R1
2
H0BP
=
–
R3/R1
;
H0LP
=
(R2/R4)
– R2/R1
+ [R6/(R5
+
R6)]
Figure 10. Mode 2b: 2nd Order Filter Providing Notch,
Bandpass, Lowpass
R4
R3
R2
R1
VIN
4–
(17)
+
3
N
(18)
5
S1A
(16)
+–
Σ∫
–
2
BP
(19)
1
LP
(20)
∫
SA/B
6 15
1/2 LTC1060
TLC1060 • MOO08
V–
f0
=
fCLK
100(50)
R2; Q = R3
R4 R2
R2
R4
;
H0HP
=
–R2/R1;
H0BP
=
–R3/R1;
H0LP
=
–R4/R1
Figure 11. Mode 3: 2nd Order Filter Providing Highpass,
Bandpass, Lowpass
R4
R3
R2
R1
VIN
4–
(17)
+
SA/B
6 15
V–
3
HP
(18)
5
S1A
(16)
+–
Σ∫
–
2
BP
(19)
1
LP
(20)
∫
RI
1/2 LTC1060
Rh
Rg
–
EXTERNAL
OP AMP
+
NOTCH
f0
= fCLK
100(50)
R2
R4
;
fn
=
fCLK
100(50)
Rh
RI
; H0HP = –R2/R1;
H0BP = –R3/R1, H0LP = – R4/R1
( H0N1(f
0) =
Rg •
RI
R4
R1
; H0N2
f
) ( ) fCLK
2
=
Rg
Rh
•
R2
R1
;
H0N(f
=
f0)
=
Q
Rg
RI
H0LP –
Rg
Rh
H0HP
;Q=
R3
R2
R2
R4
Figure 12. Mode 3a: 2nd Order Filter Providing Highpass,
Bandpass, Lowpass, Notch
TLC1060 • MOO09
1060fb
13
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