BA7755 View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

View to exact match

BA7755

High-voltage audio head selection switch

ROHM Semiconductor 

Video ICs

BA7755A / BA7755AF

•Application example

2

VCC LINE IN

R6

5.6 k

+

C10

+

4

6

+

+

8

10

BIAS

LINE OUT PB

EE

REC EP

EE SP

R8 10k

++

+

12

14

16

18

20

22

BUFF.

CTRL VCC

MUTE ON

MUTE OFF

24

BA7751ALS

BIAS

R

SW1

P

PB

ALC DET.

ALC VR.

SW5

LINE

40dB

SW3

SW7

1

3

5

7

9

11 13 15 17

R2 R3

330k 12k

R5

18k

+

R1 47

C4

+

0.01µ

+

+

SW4

REC

SW8

19

21

23

R15 51k

+

L1 R19

3.9mH 470

+

PB IN REC OUT

BA7755A

12345

R / P HEAD

VR2

AC BIAS

Note:

R13, C16, R16 and C18 prevent switching

noise. These are not required if external

muting or some other method is used to

eliminate switching noise.

•External dimensions (Units: mm)

BA7755A

Fig.4

BA7755AF

11.8 ± 0.2

2.4 ± 0.2

5.0 ± 0.2

8

5

1

2.54

5

0.6 0.6

0.8

1.3

0.3 ± 0.1

SIP5

4

1

4

1.27

0.4 ± 0.1

0.3Min.

0.15

SOP8

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