0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

OUTPUT POWER (W)

0.00

0.10

0.25

0.30

0.35

0.40

0.45

0.50

0.0

1.0

2.0

3.0

5.0

4.0

OUTPUT POWER (W)

0.05

0.20

0.15

-100

0

-90

-80

-70

-60

-50

-40

-30

-20

-10

20

20k

100 200

1k 2k

10k

FREQUENCY (Hz)

0

10

20

30

40

50

60

70

80

90

100

0

OUTPUT POWER (W)

0.2

0.4

0.6

0.8

1.0

1.2

LM48411

www.ti.com

SNAS399F – SEPTEMBER 2007 – REVISED JULY 2008

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.

Efficiency vs Output Power

Crosstalk vs Frequency

Figure 28.

Figure 29.

Power Dissipation vs Output Power

Power Dissipation vs Output Power

Figure 30.

Figure 31.

Copyright © 2007–2008, Texas Instruments Incorporated

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