Datasheet

Typical Operating Characteristics (continued)
(MAX9736A, V
PVDD
= 12V, MOD = high, spread-spectrum modulation mode, V
GND
= V
PGND
= 0V, V
SHDN
= V
MUTE
= 5V, unless
otherwise noted.)
MAX9736
Mono/Stereo High-Power Class D Amplifier
_______________________________________________________________________________________ 7
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9736 toc10
OUTPUT POWER (W)
THD+N (%)
161412108642
0.01
0.1
1
10
0.001
018
V
PVDD
= 24V,
SPREAD SPECTRUM,
8Ω LOAD
6kHz
1kHz
20Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9736 toc11
OUTPUT POWER (W)
1412108642016
V
PVDD
= 12V,
FIXED FREQUENCY,
4Ω LOAD
6kHz
1kHz
20Hz
THD+N (%)
0.01
0.1
1
10
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9736 toc12
OUTPUT POWER (W)
THD+N (%)
1512963
0.01
0.1
1
10
0.001
018
6kHz
1kHz
20Hz
V
PVDD
= 12V,
SPREAD SPECTRUM,
4Ω LOAD
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9736 toc13
TOTAL OUTPUT POWER (W)
EFFICIENCY (%)
15105
10
20
30
40
50
60
70
80
90
100
0
POWER DISSIPATION (W)
1
2
3
4
5
6
7
8
9
10
0
020
EFFICIENCY
POWER DISSIPATION
V
PVDD
= 12V,
FIXED FREQUENCY,
8Ω LOAD
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9736 toc14
TOTAL OUTPUT POWER (W)
181612 144 6 8 102020
EFFICIENCY (%)
10
20
30
40
50
60
70
80
90
100
0
EFFICIENCY
POWER DISSIPATION
V
PVDD
= 12V,
SPREAD SPECTRUM,
8Ω LOAD
POWER DISSIPATION (W)
1
2
3
4
5
6
7
8
9
10
0
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9736 toc15
TOTAL OUTPUT POWER (W)
302515 20105035
EFFICIENCY (%)
10
20
30
40
50
60
70
80
90
100
0
EFFICIENCY
POWER DISSIPATION
V
PVDD
= 18V,
SPREAD SPECTRUM,
8Ω LOAD
POWER DISSIPATION (W)
1
2
3
4
5
6
7
8
9
10
0
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9736 toc16
TOTAL OUTPUT POWER (W)
302515 20105035
EFFICIENCY (%)
10
20
30
40
50
60
70
80
90
100
0
EFFICIENCY
POWER DISSIPATION
V
PVDD
= 18V,
FIXED FREQUENCY,
8Ω LOAD
POWER DISSIPATION (W)
1
2
3
4
5
6
7
8
9
10
0