LTC1264CS Linear Technology, LTC1264CS Datasheet - Page 9

• Manufacturer Part Number: LTC1264CS
• Description: High Speed/ Quad Universal Filter Building Block
• Manufacturer: Linear Technology

W
BLOCK
ODES OF OPERATIO
V
IN
I D AGRA
R1
AGND
–
+
AGND
INV A
INV B
INV D
INV C
W
R4
R3
R2
Figure 9. Mode 2n, 2nd Order Filter Providing a Lowpass Notch Output
12
24
13
1
6
–
+
–
+
–
+
–
+
HP
U
+
C
C
–
1/4 LTC1264
S
HPB/NB
HPA/NA
HPC/NC
HPD/ND
11
23
14
2
R
+
H
+
+
+
BP
–
–
–
–
SA
SB
20
SC
SD
17
8
5
+
+
+
+
LP
R
L
BPA
BPC
BPD
BPB
10
22
15
3
+
–
+
+
+
+
R
EXTERNAL OP AMP OR
INPUT OP AMP OF THE
LTC1264, SIDES A, B, C, D
G
LPA
LPB
LPC
LPD
16
21
9
4
f
f
H
Q = 1.005
i
O
OLPn
=
= f
f
CLK
20
i
(f = 0)=
LOWPASS
NOTCH
OUTPUT
; f
1264 BD
1 +
18
19
n
R3
R2
7
= f
R2
R4
i
V
CLK
V
R
R
+
–
G
H
1 +
1 +
+
R
R
R2
R4
R
R
G
L
H
L
R2
R1
1 –
1 +
6.42•R4
LTC1264
1
1264 G09
1
R3
R2
R4
9