(MAX9736A, VPVDD = 12V, MOD = high, spread-spectrum modulation mode, VGND = VPGND = 0V, VSHDN = VMUTE = 5V, unless

otherwise noted.)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

OUTPUT POWER (W)

30

25

20

15

10

5

0.1

1

10

0.01

0

35

6kHz

1kHz

20Hz

VPVDD = 18V,

FIXED FREQUENCY,

4Ω LOAD, MONO

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

OUTPUT POWER (W)

30

25

20

15

10

5

0.1

1

10

0.01

0

35

6kHz

1kHz

20Hz

VPVDD = 18V,

SPREAD SPECTRUM,

4Ω LOAD, MONO

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

OUTPUT POWER (W)

30

25

20

15

10

5

0.1

1

10

0.01

0

35

1kHz

VPVDD = 24V,

FIXED FREQUENCY,

4Ω LOAD, MONO

6kHz

20Hz

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. OUTPUT POWER (VDD = 24V,

SPREAD SPECTRUM, 4Ω LOAD, MONO)

OUTPUT POWER (W)

30

24

18

12

6

0

36

6kHz

1kHz

20Hz

0.1

1

10

0.01

EFFICIENCY

vs. OUTPUT POWER

OUTPUT POWER (W)

15

10

5

10

20

30

40

50

60

70

80

90

0

0

20

4Ω LOAD, MONO,

1kHz FIXED FREQUENCY

VPVDD = 24V

VPVDD = 18V

VPVDD = 12V

EFFICIENCY

vs. OUTPUT POWER

10

20

30

40

50

60

70

80

90

100

0

4Ω LOAD, MONO,

f = 1kHz SPREAD SPECTRUM

OUTPUT POWER (W)

15

10

5

0

20

VPVDD = 24V

VPVDD = 18V

VPVDD = 12V

OUTPUT POWER vs. VDD

(LOAD = 4Ω, f = 1kHz, SPREAD SPECTRUM, MONO)

SUPPLY VOLTAGE (V)

26

24

10 12 14

18 20

16

22

5

10

15

20

25

30

35

40

0

8

28

10% THD+N

1% THD+N

4Ω LOAD

f = 1kHz,

SPREAD SPECTRUM, MONO

Maxim Integrated │ 11

www.maximintegrated.com

MAX9736

Mono/Stereo High-Power Class D Amplifier

Typical Operating Characteristics (continued)