Datasheet

MAX9737
Mono 7W Class D Amplifier
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
PVDD
= 12V, V
GND
= V
PGND
= 0, V
SHDN
= V
MUTE
= 5V, R
IN
= R
FB
= 20kΩ, unless otherwise noted.)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX9737 toc01
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.1
10 100k
1
0.01
PVDD = 12V,
8Ω LOAD
4W
2W
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX9737 toc02
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.1
10 100k
1
0.01
PVDD = 12V,
4Ω LOAD
P
OUT
= 4W
P
OUT
= 2W
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9737 toc03
OUTPUT POWER (W)
THD+N (%)
7654321
0.1
1
10
0.01
08
PVDD = 12V,
8Ω LOAD
6kHz
1kHz
20Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9737 toc04
OUTPUT POWER (W)
THD+N (%)
7654321
0.1
1
10
0.01
08
PVDD = 18V,
8Ω LOAD
6kHz
1kHz
20Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9737 toc05
OUTPUT POWER (W)
THD+N (%)
7654321
0.1
1
10
0.01
08
PVDD = 24V,
8Ω LOAD
6kHz
1kHz
20Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9737 toc06
OUTPUT POWER (W)
THD+N (%)
1412108642
0.1
1
10
0.01
016
PVDD = 12V,
4Ω LOAD
6kHz
1kHz
20Hz
0
20
10
40
30
60
50
70
90
80
100
0231 45678
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9737 toc07
TOTAL OUTPUT POWER (W)
EFFICEINCY (%)
POWER DISSIPATION (W)
EFFICIENCY
PVDD = 12V,
8Ω LOAD
POWER DISSIPATION
0
2
1
4
3
6
5
7
9
8
10
0
20
10
40
30
60
50
70
90
80
100
0231 45678
EFFICIENCY
vs. TOTAL OUTPUT POWER
MAX9737 toc08
TOTAL OUTPUT POWER (W)
EFFICEINCY (%)
EFFICIENCY
PVDD = 18V,
8Ω LOAD
POWER DISSIPATION
0
2
1
4
3
6
5
7
9
8
10
POWER DISSIPATION (W)