0

500

1000

1500

2000

SUPPLY VOLTAGE (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

THD+N=10%

THD+N=1%

0

10

20

30

40

50

60

70

80

90

100

0

OUTPUT POWER (W)

0.5

1.0

1.5

2.0

2.5

VDD = 3.6V

VDD = 2.5V

VDD = 5.0V

0

500

1000

2500

3000

SUPPLY VOLTAGE (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

THD+N=10%

THD+N=1%

1500

2000

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

POWER SUPPLY (V)

0

1

2

3

4

5

6

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

FREQUENCY (Hz)

20

100

1k

10k 20k

-100

0

-90

-80

-70

-60

-50

-40

-30

-20

-10

20

20k

100 200

1k 2k

10k

FREQUENCY (Hz)

LM48411

SNAS399G – SEPTEMBER 2007 – REVISED MAY 2013

www.ti.com

Typical Performance Characteristics (continued)

The performance graphs were taken using the Audio Precision AUX-0025 Switching Amplifier measurement Filter in series

with the LC filter on the demo board.

PSRR vs Frequency

CMRR vs Frequency

VDD = 3.6V, RL = 8Ω

VDD = 3.6V, RL = 8Ω

Figure 22.

Figure 23.

Quiescent Current vs Power Supply

Output Power vs Supply Voltage

RL = ∞

RL = 4Ω, f = 1kHz

Figure 24.

Figure 25.

Output Power vs Supply Voltage

Efficiency vs Output Power

RL = 8Ω, f = 1kHz

RL = 4Ω

Figure 26.

Figure 27.

10

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