LTC1068 Linear Technology, LTC1068 Datasheet - Page 22

• Manufacturer Part Number: LTC1068
• Description: Clock-Tunable/ Quad Second Order/ Filter Building Blocks
• Manufacturer: Linear Technology

LTC1068 Series
TYPICAL APPLICATIONS
22
Passband – 3dB at (0.88)(f
LTC1068 8th Order Linear Phase Bandpass, f
V
IN
24.3k
R11
2.32k
R63
5V
16.9k
17.4k
7.32k
R43
R33
R23
25.5k
107k
R21
10k
R31
R41
f
CENTER
0.1 F
R53
4.99k
FilterCAD Custom Inputs for f
= 50kHz with 5V Supplies
10
11
12
2nd ORDER SECTION
1
2
3
4
5
6
7
8
9
CENTER
INV B
HPB/NB
BPB
LPB
SB
AGND
V
SA
LPA
BPA
HPA/NA
INV A
+
24.9k
R
L1
18.7k
R
LTC1068
U
B3
) and (1.12)(f
B
C
A
D
HPD/ND
51.1k
HPC/NC
R
H1
INV D
INV C
BPC
f
LPD
BPD
LPC
CLK
SD
SC
V
–
24
23
22
21
20
19
18
17
16
15
14
13
CENTER
CENTER
1MHz
10.4569
11.7607
f
8.6632
9.0909
O
12.1k
19.1k
R44
R34
(kHz)
R24
10k
V
32.4k
26.1k
C
R22
R32
R42
10k
OUT
= 10kHz
). Maximum
= f
14.3k
R
0.1 F
CLK
B2
–5V
1068 TA15a
/100,
2.6999
3.9841
2.1384
1.8356
Q
24-Lead Package
17.4706
f
N
(kHz)
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
TYPE
LPN
0
BP
BP
BP
1
MODE
Gain vs Frequency
2n
2b
2
3
FREQUENCY (kHz)
10
1068 TA15b
100