TDA7442 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

比赛名单

TDA7442

TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR

STMicroelectronics 

5.2 Surround Selection (continued)

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

0

1

1

0

1

1

1

0

0

1

1

1

1

1

1

0

1

1

1

1

1

1

1

0

1

1

1

0

1

1

1

0

1

1

0

1

1

1

1

0

1

1

0

0

1

1

1

0

1

0

1

1

1

1

1

0

1

0

1

0

1

1

1

0

1

0

0

1

1

1

1

0

1

0

0

0

1

1

1

0

INPUT SELECTION

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

X

0

0

0

X

0

1

0

X

1

0

0

X

X = INDIFFERENT 0,1

SPEAKER ATTENUATION = 0dB ~ -79dB

1

1

0

TREBLE SELECTION

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

0

0

0

0

1

1

1

0

0

0

0

1

1

1

1

0

0

0

1

0

1

1

1

0

0

0

1

1

1

1

1

0

0

1

0

0

1

1

1

0

0

1

0

1

1

1

1

0

0

1

1

0

1

1

1

0

0

1

1

1

1

1

1

0

1

1

1

1

1

1

1

0

1

1

1

0

1

1

1

0

1

1

0

1

1

1

1

0

1

1

0

0

1

1

1

0

1

0

1

1

1

1

1

0

1

0

1

0

1

1

1

0

1

0

0

1

1

1

1

0

1

0

0

0

1

1

1

0

INPUT SELECTION

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

X

0

0

0

X

0

1

0

X

1

0

0

X

1

1

0

TDA7442 - TDA7442D

TREBLE

2 dB STEPS

-2

0

0

2

4

6

8

10

12

14

INPUT MULTIPLEXER

IN2

IN3

IN4

IN1

TREBLE

2 dB STEPS

-14

-12

-10

-8

-6

-4

-2

0

0

2

4

6

8

10

12

14

INPUT MULTIPLEXER

IN2

IN3

IN4

IN1

11/17

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