BA5810FM データシートの表示（PDF） - ROHM Semiconductor

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BA5810FM

Driver IC for CD / CD-ROM

ROHM Semiconductor 

光ディスク IC

z測定回路図

BIAS

BA5810FP/FM

MUTE

POWVCC34

A

AM28

28

OPAMP UNIT

27

26

25

OPAMP UNIT

24

23

22

7.5k

7.5k

−16k

+

AA

AM21 AM20

BTL UNIT

BTL UNIT

21

20

19

18

17

16

15

10k

10k 10k

10k

CH1~ POWVCC34

CH4 (CH3, CH4)

MUTE

−16k

+

10k

10k

10k

−+

10k

LEVEL

SHIFT

−+

LEVEL

SHIFT

LOADING PRE

FWD REV

POWER

×3

SAVE

+

−

16k

7.5k

7.5k

PREVCC

(PRE, LOADING)

VM1

V

1

2

3

4

VM2

AM2

V VCNT

AAVA

AM1

AM4

5

6

7

VM5

VM6

VV

AAA

AM5

AM6

AM7

FWD

REV

LDCNT PS

IN1

IN2

PREVCC

+

−

16k

POWVCC12

(CH1, CH2)

8

9

LEVEL

SHIFT

LEVEL

−+

SHIFT

−+

10k

10k

10k

10k

10k

10

11

10k 10k

12

13

10k

14

A

AM8

LOADING

UNIT

POWVCC12

BTL UNIT

BTL UNIT

Fig.1

+

−

SW1

B

V VOF

A

1M VBIN

V

V VNFR

A

B 10k

V OPOUT

(VM4,7,22,25)

VBOP

10k

SW2

C 1M

SW3

50

SW4

A

B

VIN

CA

B

PREVCC

OP AMP UNIT

V VOL(+)

VOLD

V

SW6

V VOL(−)

V VO+

(VM12,14,17,15)

VO (1,2,3,4)

V

SW5

V VO−

(VM11,13,18,16)

B

A C RL

A ILK+

B

AC

A ILK−

VLK+

VLK−

BTL UNIT

A

A

BC

RL

BC

A

ILF

A

ILR

ILK+

ILK−

VLK+

VLK−

LOADING UNIT

Fig.2

5/8

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