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NCP2821 Datasheet(PDF) 9 Page - ON Semiconductor

Part No. NCP2821
Description  2.65 W Filterless with Selectable Gain Class−D Audio Amplifier
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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 9 page
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NCP2821
http://onsemi.com
9
TYPICAL CHARACTERISTICS
10
−20
100
1000
10000
100000
FREQUENCY (Hz)
Inputs to GND
RL = 4 W
Vp = 3.6 V
Vp = 5 V
−30
−40
−50
−60
−70
−80
10
−20
100
1000
10000
100000
FREQUENCY (Hz)
Inputs to GND
RL = 8 W
Vp = 3.6 V
Vp = 5 V
−30
−40
−50
−60
−70
−80
10
0.01
0.1
1.0
10
100
1000
10000
100000
FREQUENCY (Hz)
Vp = 2.5 V
Vp = 5 V
10
POWER SUPPLY (V)
Figure 21. Output Power vs. Power Supply
RL = 8 W @ f = 1 kHz
Figure 22. Output Power vs. Power Suppy
RL = 4 W @ f = 1 kHz
0.01
0.1
1.0
10
100
1000
10000
100000
Figure 23. THD+N vs. Frequency
RL = 8 W, Pout = 250 mW @ f = 1 kHz
Figure 24. THD+N vs. Frequency
RL = 4 W, Pout = 250 mW @ f = 1 kHz
Figure 25. PSRR vs. Frequency
Inputs Grounded, RL = 8 W, Vripple = 200 mvpkpk
Figure 26. PSRR vs. Frequency
Inputs grounded, RL = 4 W, Vripple = 200 mVpkpk
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
THD+N = 10%
RL = 8 W
f = 1 kHz
THD+N = 1%
POWER SUPPLY (V)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
THD+N = 10%
THD+N = 1%
2.5
3.0
RL = 4 W
f = 1 kHz
FREQUENCY (Hz)
Vp = 2.5 V
Vp = 3.6 V
Vp = 5 V
Vp = 3.6 V
5.0




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