BD5446EFV 데이터 시트보기 (PDF) - ROHM Semiconductor

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BD5446EFV

Class-D Speaker Amplifier or Digital Input

ROHM Semiconductor 

BD5446EFV

Technical Note

No. Pin name Pin voltage

Pin explanation

Internal equivalence circuit

7

SYS_CLK

8

BCLK

9

LRCLK

10

SDATA1

11

SDATA2

12

RESETX

13

MUTEX

14

PDX

15

IIS_LJ

5

0V

Digital audio signal input pin

7,8,9

10,11

50K

6

Reset pin for Digital circuit

H: Reset OFF

L: Reset ON

Speaker output mute control pin

0V

H: Mute OFF

L: Mute ON

Power down control pin

H: Power down OFF

L: Power down ON

5

12,13,14

50K

6

5

Digital audio signal data format setting terminal

0V

H: Left Justified format

L: I2S format

15

50K

6

16

GAIN1

17

GAIN2

18

GAIN3

Gain setting terminal

0V

Gain=20dB~34dB, 2dB step

19

TEST1

20

TEST2

Test pin

0V

Please connect to GND.

5

16,17,18

50K

6

5

19,20

50K

6

21

SEL_DAC

DAC output selection terminal

0V

H: SDATA2 is output from the DAC

L: SDATA1 is output from the DAC

5

21

50K

6

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8/31

2011.06 - Rev.C

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