LTC1068CG-25 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

fabricante

LTC1068CG-25

Clock-Tunable, Quad Second Order, Filter Building Blocks

Linear Technology 

TYPICAL APPLICATIONS

LTC1068 8th Order Linear Phase Bandpass, fCENTER = fCLK/128,

Passband – 3dB at (0.88)(fCENTER) and (1.12)(fCENTER). Maximum

fCENTER = 40kHz with ±5V Supplies

RL1

63.4k

RH1

7.5k

RB2

16.2k

1

24

R21

INV B

INV C

R22

4.99k

R11

R31

2

23

HPB/NB HPC/NC

4.99k

R32

26.1k

VIN

19.6k

3

BPB

22

BPC

21.5k

R41

12.1k

4

LPB

21

LPC

LTC1068

5

SB

6

AGND

20

SC

V– 19

R52

4.99k

R62

7.5k

– 5V

5V

7 V+

0.1µF

0.1µF

R43

10.7k

R33

14.7k

R23

8 SA

9

LPA

10

BPA

18

CLK 1.28MHz

SD 17

R64 17.8k

R54

16

LPD

4.99k

R34 VOUT

15 28.7k

BPD

R24

4.99k

11

14 4.99k

HPA/NA HPD/ND

12

INV A

13

INV D

RL3

14.7k

RH3

40.2k

10

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

1

24-Lead Package

1068 TA14a

LTC1068 Series

Gain vs Frequency

10

FREQUENCY (kHz)

100

1068 TA14b

FilterCAD Custom Inputs for fC = 10kHz

2nd ORDER SECTION fO (kHz)

Q

fN (kHz) TYPE

B

8.2199 2.6702 4.4025 HPN

C

9.9188 3.3388

BP

A

8.7411 2.1125 21.1672 LPN

D

11.3122 5.0830

BP

MODE

3a

1b

3a

1b

21

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