WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 10

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8959
w
CLASS AB DE-RATING CURVE
The de-rating curves shown in Figure 3 are based on a full scale sinusoidal input
Figure 3 Class AB Speaker Power De-Rating Curve
[W]
P
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
SPKVDD = 3.6V
SPKVDD = 3.3V
SPKVDD = 2.7V
SPKVDD = 3V
SPKVDD = 5.5V
55
60
65
SPKVDD = 5V
70
75
SPKVDD = 4.2V
80
85
PP, May 2008, Rev 3.1
[ºC]
T
Pre-Production
10