Characterization curves

TDA7498MV

12/26

DocID016505 Rev 6

4.2

Characterization curves

Unless otherwise stated the measurements were made under the following conditions:

VCC = 36 V, f = 1 kHz, GV = 25.6 dB, ROSC

= 39 kΩ, C

OSC = 100 nF, Tamb = 25 °C

4.2.1

For RL

= 6 Ω

Figure 4: Output power (THD = 10%) vs.

supply voltage

Figure 5: THD vs. output power

Figure 6: THD vs. frequency (1 W)

Figure 7: THD vs. frequency (100 mW)

10

120

20

30

40

50

60

70

80

90

100

110

+10

+36

+12

+14

+16

+1 8

+20

+22

+24

+26

+2 8

+30

+32

+34

Su pplyvoltage (V)

0.005

10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

100m

200

200m

500m

1

2

5

10

20

50

100

Output power (W)

f = 1 kHz

f =100 Hz

20

20k

50

100

200

500

1k

2k

5k

10k

Fre quency (Hz)

0.01

2

0.02

0.05

0.1

0.2

0.5

1

0.01

2

0.02

0.05

0.1

0.2

0.5

1

20

20k

50

100

200

500

1k

2k

5k

10k

Fre quency (Hz)