MP7740 – 15W CLASS D MONO SINGLE ENDED AUDIO AMPLIFIER
TYPICAL PERFORMANCE CURVES
Circuit of Figure 1, V
DD
=24V, V
EN
=5V, A
V
=8.25V/V, T
A
= +25°C, unless otherwise noted.
20
10
5
20
10
5
20
10
5
THD+N (%)
THD+N (%)
Freq=1kHz
Freq=10kHz
0.2
0.1
0.05
0.02
0.01
60m
Freq=1kHz
Freq=10kHz
Freq=100Hz
0.2
0.1
0.05
200m
1
5
20
0.02
0.01
60m
Freq=100Hz
200m
1
5
20
THD+N (%)
2
1
0.5
2
1
0.5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
20
100
500
2k
10k
P
OUT
(W)
P
OUT
(W)
FREQUENCY (Hz)
AMPLITUDE (dBr)
20
10
5
+4
+2
+0
-2
-4
-6
-8
100
500
2k
10k
-10
20
100
1k
10k
40k
+4
+2
THD+N (%)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
20
AMPLITUDE (dB)
0
-2
-4
-6
-8
-10
20
100
1k
10k
40k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
+0
-10
-20
-30
-40
-50
-60
-70
-80
20
100
500
2k
10k
0
0
AMPLITUDE (dBV)
AMPLITUDE (dB)
AMPLITUDE (dBV)
-20
-40
-60
-80
-20
-40
-60
-80
-100
-120
2
4
6
8 10 12 14 16 18 20
-100
-120
2
4
6
8 10 12 14 16 18 20
FREQUENCY (Hz)
FREQUENCY (KHz)
FREQUENCY (KHz)
MP7740 Rev. 0.9
9/22/2009
www.MonolithicPower.com
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5
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