NCP2821 datasheet(9/19 Pages) ONSEMI

Teilenummer	NCP2821

Bauteilbeschribung	2.65 W Filterless with Selectable Gain Class?묭 Audio Amplifier

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Hersteller	ONSEMI [ON Semiconductor]

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NCP2821

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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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