WM8959 查看數據表（PDF） - Wolfson Microelectronics plc

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WM8959

Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver

Wolfson Microelectronics plc 

WM8959

CLASS AB DE-RATING CURVE

The de-rating curves shown in Figure 3 are based on a full scale sinusoidal input

Pre-Production

P

[W]

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

SPKVDD = 5.5V SPKVDD = 5V SPKVDD = 4.2V

SPKVDD = 3.6V

SPKVDD = 3.3V

SPKVDD = 3V

SPKVDD = 2.7V

55 60 65 70 75 80 85

T

[ºC]

Figure 3 Class AB Speaker Power De-Rating Curve

w

PP, May 2008, Rev 3.1

10

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