TPA3004D2PHP datasheet(8/43 Pages) TI

Nome de Peças	TPA3004D2PHP

Descrição Electrónicos	12-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL

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Fabricante Electrônico	TI [Texas Instruments]

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TPA3004D2

SLOS407A – FEBRUARY 2003 – MARCH 2003

8

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Table 1. DC Volume Control for Class-D Outputs

VOLTAGE ON THE

VOLUME PIN AS A

PERCENTAGE OF

VREF (INCREASING

VOLUME OR FIXED

GAIN)

VOLTAGE ON THE

VOLUME PIN AS A

PERCENTAGE OF

VREF (DECREASING

VOLUME)

GAIN OF CLASS-D

AMPLIFIER

%

dB

0 – 4.5

0 – 2.9

–75†

4.5 – 6.7

2.9 – 5.1

–40.0

6.7 – 8.91

5.1 – 7.2

–37.5

8.9 – 11.1

7.2 – 9.4

–35.0

11.1 – 13.3

9.4 – 11.6

–32.4

13.3 – 15.5

11.6 – 13.8

–29.9

15.5 – 17.7

13.8 – 16.0

–27.4

17.7 – 19.9

16.0 – 18.2

–24.8

19.9 – 22.1

18.2 – 20.4

–22.3

22.1 – 24.3

20.4 – 22.6

–19.8

24.3 – 26.5

22.6 – 24.8

–17.2

26.5 – 28.7

24.8 – 27.0

–14.7

28.7 – 30.9

27.0 – 29.1

–12.2

30.9 – 33.1

29.1 – 31.3

–9.6

33.1 – 35.3

31.3 – 33.5

–7.1

35.3 – 37.5

33.5 – 35.7

–4.6

37.5 – 39.7

35.7 – 37.9

–2.0

39.7 – 41.9

37.9 – 40.1

0.5†

41.9 – 44.1

40.1 – 42.3

3.1

44.1 – 46.4

42.3 – 44.5

5.6

46.4 – 48.6

44.5 – 46.7

8.1

48.6 – 50.8

46.7 – 48.9

10.7

50.8 – 53.0

48.9 – 51.0

13.2

53.0 – 55.2

51.0 – 53.2

15.7

55.2 – 57.4

53.2 – 55.4

18.3

57.4 – 59.6

55.4 – 57.6

20.8

59.6 – 61.8

57.6 – 59.8

23.3

61.8 – 64.0

59.8 – 62.0

25.9

64.0 – 66.2

62.0 – 64.2

28.4

66.2 – 68.4

64.2 – 66.4

30.9

68.4 – 70.6

66.4 – 68.6

33.5

> 70.6

>68.6

36.0†

† Tested in production. Remaining steps are specified by design.

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