MAX9737 Просмотр технического описания (PDF) - Maxim Integrated
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MAX9737 Datasheet PDF : 13 Pages
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Mono 7W Class D Amplifier
Typical Operating Characteristics (continued)
(VPVDD = 12V, VGND = VPGND = 0, VSHDN = VMUTE = 5V, RIN = RFB = 20kΩ, unless otherwise noted.)
EFFICIENCY
vs. TOTAL OUTPUT POWER
90
10 MAX9737 toc09
PVDD = 24V,
80 8Ω LOAD
9
70
8
7
60
EFFICIENCY
6
50
5
40
4
30
POWER DISSIPATION
3
20
2
10
1
0
0
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TOTAL OUTPUT POWER (W)
EFFICIENCY
vs. TOTAL OUTPUT POWER
100
10 MAX9737 toc10
90
PVDD = 12V,
4Ω LOAD
9
80
8
70
7
EFFICIENCY
60
6
50
5
40
4
30
POWER DISSIPATION
3
20
2
10
1
0
0
0 2 4 6 8 10 12 14 16
TOTAL OUTPUT POWER (W)
TOTAL OUTPUT POWER vs. PVDD
9
8
7
10% THD+N
6
1% THD+N
5
4
3
2
1 8Ω LOAD
f = 1kHz
0
8 10 12 14 16 18 20 22 24 26 28
SUPPLY VOLTAGE (V)
20
0
-20
-40
-60
-80
-100
-120
0
INBAND OUTPUT SPECTRUM
8Ω LOAD
5k
10k
15k
20k
FREQUENCY (Hz)
TOTAL OUTPUT POWER
vs. LOAD RESISTANCE
18
PVDD = 12V
16
14
12
10
8
10% THD+N
6
4
1% THD+N
2
0
0
5 10 15 20 25 30
LOAD RESISTANCE (Ω)
WIDEBAND OUTPUT SPECTRUM
0
8Ω LOAD
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
100k
1M
10M
FREQUENCY (Hz)
100M
TOTAL OUTPUT POWER
vs. LOAD RESISTANCE
11
10
PVDD = 8V
9
8
7
6
5
10% THD+N
4
3
2 1% THD+N
1
0
0
5 10 15 20 25 30
LOAD RESISTANCE (Ω)
SUPPLY CURRENT
vs. PVDD SUPPLY VOLTAGE
20
18
16
14
12
10
8
6
4
2
0
8 10 12 14 16 18 20 22 24 26 28
SUPPLY VOLTAGE (V)
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