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WM8959 Datasheet(PDF) 10 Page - Wolfson Microelectronics plc

Part # WM8959
Description  Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver
PDF  155 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8959 Datasheet(HTML) 10 Page - Wolfson Microelectronics plc

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



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