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AD1990 Datasheet(PDF) 9 Page - Analog Devices

Part # AD1990
Description  Class-D Audio Power Amplifier
PDF  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD1990 Datasheet(HTML) 9 Page - Analog Devices

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Preliminary Technical Data
AD199x
Rev. PrA – 1/20/05 | Page 9 of 16
-160
-140
-120
-100
-80
-60
-40
-20
0
0
2
4
6
8
10
1214
1618
20
FREQUENCY - KHz
POWER = 1W
RL =6Ω
Figure 10. 10KHz, 1W into a 6
Ω Load
-160
-140
-120
-100
-80
-60
-40
-20
0
02
4
6
8
10
12
14
16
18
20
FREQUENCY - KHz
POWER = 1W
RL =6Ω
Figure 11. 19KHz, 1W into a 6
Ω Load
TT
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
00.2
0.2W
0.4/
0.78W
0.6/
1.75W
0.8/
3W
1.0/
5W
1.2/
7W
VRMS (V)
PVDD =12V
RL =6Ω
AMPLIFIER GAIN (AV) = 2.7
POWER = (VRMS × AV × 2)2/RL
fIN = 10KHz
fIN = 1KHz
fIN =100Hz
Figure 12. THD+N vs Input Signal/Power Output
0
10
20
30
40
50
60
70
80
90
100
01
23
4
5
Watts Per Channel
Figure 13. Efficiency vs Power
-120
-110
-100
-80
-50
-60
-40
-20
20
50
100
200
500
1K
2K
5K
10K
20K
FREQUENCY - Hz
-90
-70
-30
Figure 14. THD+N vs Distortion, 1W into a 6
Ω Load



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