LA7477W データシートの表示（PDF） - SANYO -> Panasonic

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LA7477W

For Digital Video Camera Audio Signal I/O Interface IC

SANYO -> Panasonic 

LA7477W

Continued from preceding page.

Pin No.

Pin Name

9

ALC DET

DC

voltage

AC voltage

Description

ALC detection

IR (MIC) ≈ 1.8μA

IR (LINE) ≈ 0.5μA

10

DC DET R

28

DC DET L

1.80V

Detects the DC level and cancels the

offset.

11

REC OUT + R

12

REC OUT - R

26

REC OUT - L

27

REC OUT + L

1.80V

-17dBV

(Reference

inputs)

Right channel record output + phase

Right channel record output - phase

Left channel record output - phase

Left channel record output + phase

Equivalent circuit

30kΩ

9

IR

15kΩ

10kΩ

10kΩ

10

28

11

27

12

26

13

DE-EMPHASIS R

1.80V

25

DE-EMPHASIS L

14

AMP + IN R

15

AMP - IN R

23

AMP - IN L

24

AMP + IN L

1.80V

16

CHIP SELECT IN

17

CLOCK IN

18

DATA IN

Deemphasis control

13

15kΩ

25

35kΩ

Right channel playback + phase input

Right channel playback - phase input

Left channel playback - phase input

Left channel playback + phase input

VREF

12kΩ

14

24 15kΩ

12kΩ

15kΩ

Chip select input

Clock input

Data input

15 23

50kΩ

16

17

3pF

50kΩ

18

Continued on next page.

No.5775-10/12

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