Mono/Stereo High-Power Class D Amplifier
MAX9736
Typical Operating Characteristics
(MAX9736A, PVDD = 12V, MOD = high, spread-spectrum modulation mode, V
erwise noted.)
= V
= 0V, V
= V
= 5V, unless oth-
GND
PGND
SHDN
MUTE
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
1
0.1
1
1
0.1
PVDD = 12V,
SPREAD SPECTRUM,
8Ω LOAD
PVDD = 12V,
FIXED FREQUENCY,
4Ω LOAD
PVDD = 12V,
FIXED FREQUENCY,
8Ω LOAD
P
OUT
= 5W
P
= 5W
OUT
0.1
0.01
P
OUT
= 5W
P
OUT
= 3W
P
OUT
= 3W
P
= 3W
OUT
0.01
0.001
0.01
0.001
0.001
10
100
1k
FREQUENCY (Hz)
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
1
0.1
10
1
10
1
PVDD = 12V,
SPREAD SPECTRUM,
4Ω LOAD
PVDD = 12V,
FIXED FREQUENCY,
8Ω LOAD
PVDD = 12V,
SPREAD SPECTRUM,
8Ω LOAD
6kHz
6kHz
1kHz
P
= 5W
OUT
0.1
0.1
1kHz
P
= 3W
OUT
0.01
0.001
0.01
0.001
0.01
0.001
20Hz
20Hz
10
100
1k
FREQUENCY (Hz)
10k
100k
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
OUTPUT POWER (W)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
10
1
10
1
10
1
PVDD = 24V,
FIXED FREQUENCY,
8Ω LOAD
PVDD = 18V,
FIXED FREQUENCY,
8Ω LOAD
PVDD = 18V,
SPREAD SPECTRUM,
8Ω LOAD
6kHz
1kHz
6kHz
6kHz
1kHz
0.1
0.1
0.1
20Hz
20Hz
1kHz
0.01
0.001
0.01
0.001
0.01
0.001
20Hz
0
2
4
6
8
10 12 14 16 18 20
12
OUTPUT POWER (W)
0
2
4
6
8
10 12 14 16 18 20
0
4
8
16
OUTPUT POWER (W)
OUTPUT POWER (W)
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5