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LTC1068 Datasheet(PDF) 28 Page - Linear Technology

Part # LTC1068
Description  Clock-Tunable, Quad Second Order, Filter Building Blocks
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1068 Datasheet(HTML) 28 Page - Linear Technology

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LTC1068 Series
1068fa LT/TP 0998 2K REV A • PRINTED IN USA
TYPICAL APPLICATION
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 qFAX:(408)434-0507 q www.linear-tech.com
LTC1068-200 8th Order Notch, fNOTCH = fCLK/256, f – 3dB at (0.9) (fNOTCH) and (1.05)(fNOTCH),
Attenuation at fNOTCH Greater Than 70dB for fNOTCH in the Frequency Range 200Hz to 5kHz
INV B
INV C
28
1
HPB/NB
HPB/NC
27
2
SB
NC
NC
SC
24
5
R21 5.11k
R22 6.34k
BPB
BPC
26
3
R31 51.1k
R41 100k
R32 84.3k
LPA
LPD
20
9
R63
8.06k
BPA
BPD
19
10
R43
178k
C23 470pF
R34 75k
HPA/NA
HPD
18
11
INV A
INV D
17
16
15
12
13
14
R33 124k
R23 10k
R24 7.32k
RH4 5.11k
RL4 475k
LPB
LPC
25
4
R51
5.11k
RH2 5.11k
R11 51.1k
VIN
R64 7.87k
RG
15k
R62 5.76k
RL2 66.5k
RH1 5.11k
RH3 5.11k
AGND
V–
23
6
V+
22
7
SA
SD
NC
NC
CLK
21
8
5V
–5V
fCLK = (256)(fNOTCH)
VOUT
1068 TA01
LTC1068-200
0.1
µF
C21
470pF
0.1
µF
R53
5.11k
R54
5.11k
R52
5.11k
R61
8.06k
C22 470pF
LT1354
© LINEAR TECHNOLOGY CORPORATION 1996
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC1064
Universal Filter, Quad 2nd Order
50:1 and 100:1 Clock-to-fO Ratios, fO to 100kHz, VS = Up to ±7.5V
LTC1067/LTC1067-50
Low Power, Dual 2nd Order
Rail-to-Rail, VS = 3V to ±5V
LTC1164
Low Power Universal Filter, Quad 2nd Order
50:1 and 100:1 Clock-to-fO Ratios, fO to 20kHz, VS = Up to ±7.5V
LTC1264
High Speed Universal Filter, Quad 2nd Order
20:1 Clock-to-fO Ratio, fO to 200kHz, VS = Up to ±7.5V
RELATIVE FREQUENCY (fIN/fNOTCH)
–30
–10
10
1.1
1068 TA02
–50
–70
–40
–20
0
–60
–80
–90
0.8
0.9
1.0
1.2
Gain vs Frequency



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