MAX9736 데이터 시트보기 (PDF) - Maxim Integrated
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MAX9736 Datasheet PDF : 25 Pages
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Mono/Stereo High-Power Class D Amplifier
Typical Operating Characteristics (continued)
(MAX9736A, VPVDD = 12V, MOD = high, spread-spectrum modulation mode, VGND = VPGND = 0V, VSHDN = VMUTE = 5V, unless
otherwise noted.)
EFFICIENCY
vs. TOTAL OUTPUT POWER
100
MAX9736 toc17
10
90
VPVDD = 24V,
FIXED FREQUENCY,
9
80 8Ω LOAD
8
70
EFFICIENCY
7
60
6
POWER DISSIPATION
50
5
40
4
30
3
20
2
10
1
0
0
0 5 10 15 20 25 30
TOTAL OUTPUT POWER (W)
EFFICIENCY
vs. TOTAL OUTPUT POWER
100
MAX9736 toc18
10
90
VPVDD = 24V,
SPREAD SPECTRUM,
9
80 8Ω LOAD
8
70
7
60
EFFICIENCY
6
50
5
40
4
30
POWER DISSIPATION
3
20
2
10
1
0
0
0 5 10 15 20 25 30
TOTAL OUTPUT POWER (W)
EFFICIENCY
vs. TOTAL OUTPUT POWER
100
VPVDD = 12V,
90 FIXED FREQUENCY,
10 MAX9736 toc19
9
80 4Ω LOAD
8
70
7
60
EFFICIENCY
6
50
5
40
POWER DISSIPATION
4
30
3
20
2
10
1
0
0
0
5
10
15
20
TOTAL OUTPUT POWER (W)
EFFICIENCY
vs. TOTAL OUTPUT POWER
100
MAX9736 toc20
10
90
VPVDD = 12V,
SPREAD SPECTRUM,
9
80 4Ω LOAD
8
70
7
60
EFFICIENCY
6
50
5
40
4
30
3
POWER DISSIPATION
20
2
10
1
0
0
0 5 10 15 20 25 30
TOTAL OUTPUT POWER (W)
TOTAL OUTPUT POWER vs. VDD
LOAD = 8Ω, f = 1kHz
40
TOTAL OUTPUT POWER vs. LOAD RESISTANCE
VDD = 12V, f = 1kHz, SPREAD SPECTRUM
16
TOTAL OUTPUT POWER vs. LOAD RESISTANCE
VDD = 18V, f = 1kHz, SPREAD SPECTRUM
30
35
10% THD+N
30
25
1% THD+N
20
15
10
5
14
12
10
8
10% THD+N
6
4
1% THD+N
2
25
20
15
10% THD+N
10
5
1% THD+N
0
5
10
15
20
25
30
SUPPLY VOLTAGE (V)
0
5
10
15
20
25
30
LOAD RESISTANCE (Ω)
0
5
10
15
20
25
30
LOAD RESISTANCE (Ω)
8 _______________________________________________________________________________________
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