LTC1068-50CG データシートの表示（PDF） - Linear Technology

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LTC1068-50CG

Clock-Tunable, Quad Second Order, Filter Building Blocks

Linear Technology 

LTC1068 Series

TYPICAL APPLICATION

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

C22 470pF

RH1 5.11k

C21

470pF

R21 5.11k

R11 51.1k

VIN

R31 51.1k

R41 100k

R61

R51

8.06k 5.11k

5V

0.1µF

R63

8.06k

R43 R53

178k 5.11k

R33 124k

R23 10k

C23 470pF

1 INV B

2

HPB/NB

28

INV C

27

HPB/NC

3 BPB

4 LPB

BPC 26

LPC 25

5 SB

SC 24

6 NC LTC1068-200 V– 23

7

AGND

NC 22

8 V+

21

CLK

9 NC

10 SA

NC 20

19

SD

11 LPA

LPD 18

12 BPA

13 HPA/NA

14 INV A

BPD 17

16

HPD

15

INV D

RH3 5.11k

RH2 5.11k

R22 6.34k

R32 84.3k

R52 RL2 66.5k

5.11k R62 5.76k

0.1µF

R64 7.87k

R54

5.11k

R34 75k

R24 7.32k

RH4 5.11k

RL4 475k

–5V

fCLK = (256)(fNOTCH)

RG

15k

–

LT1354

+

VOUT

1068 TA27

Gain vs Frequency

10

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

0.8

0.9

1.0

1.1

1.2

RELATIVE FREQUENCY (fIN/fNOTCH)

1068 TA28

RELATED PARTS

PART NUMBER

LTC1064

LTC1067/LTC1067-50

LTC1164

LTC1264

DESCRIPTION

Universal Filter, Quad 2nd Order

Low Power, Dual 2nd Order

Low Power Universal Filter, Quad 2nd Order

High Speed Universal Filter, Quad 2nd Order

30 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

COMMENTS

50:1 and 100:1 Clock-to-fO Ratios, fO to 100kHz, VS = Up to ± 7.5V

Rail-to-Rail, VS = 3V to ±5V

50:1 and 100:1 Clock-to-fO Ratios, fO to 20kHz, VS = Up to ±7.5V

20:1 Clock-to-fO Ratio, fO to 200kHz, VS = Up to ±7.5V

1068fc

LT 1012 REV C • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 1996

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