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SLOS407D − FEBRUARY 2003 − REVISED AUGUST 2004
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
vs
vs
FREQUENCY
FREQUENCY
10
5
1
V
= 18 V,
V
R
= 12 V
CC
Gain = 36 dB,
= 8 Ω
CC
= 8 Ω
L
R
Gain = +36 dB
Class-D
L
2
1
0.5
P
O
= 0.5 W
P
O
= 5 W
P
= 1 W
O
O
0.1
P
O
= 4 W
0.2
0.1
P
O
= 2.5 W
0.05
P
= 12 W
0.02
0.01
0.01
10
100
1k
10k
20
50 100 200 500 1 k 2 k
f − Frequency − Hz
Figure 10
5 k 10 k 20 k
f − Frequency − Hz
Figure 9
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
vs
vs
FREQUENCY
FREQUENCY
1
1
V
R
= 8 V
CC
= 4 Ω
V
R
= 12 V
CC
= 4 Ω
L
L
Gain = +36 dB
Gain = +36 dB
P
O
= 0.5 W
P
O
= 4 W
P
O
= 0.5 W
0.1
0.1
P
O
= 7 W
P
O
= 2 W
P
O
= 3.5 W
0.01
0.01
20
100
1k
10k
20
100
1k
10k
f − Frequency − Hz
f − Frequency − Hz
Figure 11
Figure 12
13
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