CXA2020M データシートの表示（PDF） - Sony Semiconductor

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CXA2020M

EIAJ Sound Multiplexing Decoder

Sony Semiconductor 

Block Diagram

CXA2020M

CXA2020M/S

28 27

26

25

24

23

22

21

20

19

18

17

16

15

SUBDEEM

FM

DEMOD

MAINDEEM

OUTPUT AMP

& OUTPUT SW

MAIN

LR

SUB

MATRIX

MAIN

OUT

BIAS

CURRENT

BUFFER

BIAS

VOLTAGE

IBIAS

VOLTAGE

REGULATOR

1

2

3

4

5

SUB

DET

SUB

BPF

IIL LOGIC & CONT

CUE

CARRIER

3.5fH 952Hz

CLOCK CLOCK

3.5fH

VCO

4.5fH

TRAP

CUE

BPF

AM

952Hz

DEMOD BPF

COMP

LED

DRIVE

MPX SIGNAL

6

7

8

9

10 11

12

13

14

CXA2020S

22

21

20

19

18

17

16

15

14

13

12

TEST

SUBDEEM

FM

DEMOD

MAINDEEM

OUTPUT AMP

& OUTPUT SW

MAIN

LR

SUB

MATRIX

MAIN

OUT

BIAS

CURRENT

IBIAS

BUFFER

BIAS

VOLTAGE

VOLTAGE

REGULATOR

1

2

3

4

SUB

DET

SUB

BPF

IIL LOGIC & CONT

CUE

CARRIER

3.5fH 952Hz

CLOCK CLOCK

3.5fH

VCO

4.5fH

TRAP

CUE

BPF

AM

DEMOD

952Hz

BPF

COMP

LED

DRIVE

MPX SIGNAL

5

6

7

8

9

10

11

–2–

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