VCC = 32 V, f = 1 kHz, GV = 25.6 dB, ROSC = 39 kΩ, COSC = 100 nF, Tamb = 25 °C

4.2.1

For RL = 6 Ω

Figure 4. Output power vs. supply voltage

Figure 5. THD vs. output power (1 kHz)

0.001

10

0.002

0.005

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

%

100m

90

200m

500m

1

2

5

10

20

50

W

Figure 6. THD vs. output power (100 Hz)

0.001

10

0.002

0.005

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

%

100m

90

200m

500m

1

2

5

10

20

50

W

Figure 7. THD vs. frequency (1 W)

0.005

1

0.01

0.02

0.05

0.1

0.2

0.5

%

20

20k

50

100

200

500

1k

2k

5k

10k

Hz

TDA7498L

Characterization curves

DS6539 - Rev 6

page 9/23