LTC1068CG-50 Ver la hoja de datos (PDF) - Linear Technology
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LTC1068CG-50 Datasheet PDF : 28 Pages
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LTC1068 Series
TYPICAL APPLICATIONS
LTC1068-200 8th Order Linear Phase Lowpass, fCUTOFF = fCLK/400
for Ultralow Frequency Applications
RL1
23.2k
1
INV B
28
INV C
R21 12.4k 2
27
R11
HPB/NB HPC/NC
14.3k R31 10k 3
VIN
BPB
R41 15.4k 4
LPB
26
BPC
25
LPC
5
SB
24
SC
6
LTC1068-200
NC
V–
23
7
AGND
22
NC
5V
8 V+
21
CLK
0.1µF 9
NC
20
NC
R43 12.4k
R33 12.4k
R23 10k
10
SA
11
LPA
12
BPA
13
HPA/NA
19
SD
18
LPD
17
BPD
16
HPD/ND
14
INV A
15
INV D
RL3
23.2k
RB3 23.2k
RL2
14.3k
R22 15.4k
R32 10k
R52 5.11k
R62 9.09k
0.1µF
R64 9.09k
R54 5.11k
R34 10k
R24 15.4k
– 5V
400kHz
VOUT
1068 TA11a
10
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
0.1
Gain and Group Delay
vs Frequency
1.0
0.9
GAIN
0.8
0.7
0.6
0.5
GROUP
DELAY
0.4
0.3
0.2
0.1
0
1
10
FREQUENCY (Hz)
1068 TA11b
FilterCAD Custom Inputs for fC = 1Hz
2nd ORDER SECTION fO (Hz)
Q
B
1.7947 0.7347
C
1.6002 0.5195
A
1.7961 1.1369
D
1.6070 0.5217
QN
1.0159
TYPE
LP
LP
LPBP
LP
MODE
3
1b
3s
1b
18
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