MAX9737 Maxim Integrated Products, MAX9737 Datasheet - Page 5

• Manufacturer Part Number: MAX9737
• Description: Mono 7W Class D Amplifier
• Manufacturer: Maxim Integrated Products

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-100
-120
-20
-40
-60
-80
(V
20
0
9
8
7
6
5
4
3
2
1
0
PVDD
8
0
8Ω LOAD
f = 1kHz
10
TOTAL OUTPUT POWER vs. PVDD
= 12V, V
INBAND OUTPUT SPECTRUM
12
5k
14
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
16
GND
90
80
70
60
50
40
30
20
10
0
10k
18
_______________________________________________________________________________________
0
= V
20
PVDD = 24V,
8Ω LOAD
PGND
1
22
vs. TOTAL OUTPUT POWER
10% THD+N
15k
1% THD+N
8Ω LOAD
TOTAL OUTPUT POWER (W)
2
24
= 0, V
EFFICIENCY
26
POWER DISSIPATION
3
EFFICIENCY
20k
28
SHDN
4
5
= V
6
MUTE
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
MAX9737 toc09
18
16
14
12
10
Typical Operating Characteristics (continued)
8
6
4
2
0
0
7
100k
0
= 5V, R
1% THD+N
8
WIDEBAND OUTPUT SPECTRUM
10
9
8
7
6
5
4
3
2
1
0
5
TOTAL OUTPUT POWER
Mono 7W Class D Amplifier
vs. LOAD RESISTANCE
IN
LOAD RESISTANCE (Ω)
10
1M
FREQUENCY (Hz)
= R
10% THD+N
FB
15
= 20kΩ, unless otherwise noted.)
10M
20
PVDD = 12V
100
8Ω LOAD
90
80
70
60
50
40
30
20
10
0
25
0
PVDD = 12V,
4Ω LOAD
100M
2
30
POWER DISSIPATION
vs. TOTAL OUTPUT POWER
TOTAL OUTPUT POWER (W)
4
EFFICIENCY
EFFICIENCY
6
20
18
16
14
12
10
8
11
10
8
6
4
2
0
9
8
7
6
5
4
3
2
1
0
0
8
10
1% THD+N
10
12
vs. PVDD SUPPLY VOLTAGE
5
12 14 16
TOTAL OUTPUT POWER
MAX9737 toc10
vs. LOAD RESISTANCE
SUPPLY CURRENT
14
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
10
16
10% THD+N
10
9
8
7
6
5
4
3
2
1
0
15
18 20 22
20
PVDD = 8V
24
25
26
30
28
5