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10
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10 20 30 40
200
50 100
P
O
- Output Power - mW
THD+N - Total Harmonic Distortion + Noise (SE) - %
V = 5 V
R = 32
Gain = 14 dB
C = 0.47 F
SE Stereo
DD
L
I
W
m
C = 330 F
O
m
20 Hz
1 kHz
20 kHz
10
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
0 0.2 0.60.4
0.8
1
1.2
1.6
1.4
1.8
2
THD+N - T otal Harmonic Distortion + Noise (SE) - %
20 kHz
20 Hz
V - Output Voltage - rms
O
V = 5 V
R = 10 k
Gain = 14 dB
C = 0.47 F
SE Stereo
DD
L
I
W
m
C = 330 F
O
m
1 kHz
150
120
90
60
30
0
-30
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
10 100 1 k 10 k 100 k 1 M
-180
-150
-120
-90
-60
180
Gain
Phase
V = 5 V
R = 8
Mode = BTL
Gain = 0 dB
DD
L
W
f - Frequency - Hz
Closed Loop Gain - dB
Phase - Degrees
150
120
90
60
30
0
-30
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
10 100 1 k 10 k 100 k 1 M
-180
-150
-120
-90
-60
180
Gain
Phase
f - Frequency - Hz
Closed Loop Gain - dB
Phase - Degrees
V = 5 V
R = 8
Mode = BTL
Gain = 20 dB
DD
L
W
TPA6021A4
SLOS465 – JUNE 2005
TOTAL HARMONIC DISTORTION + NOISE (SE) TOTAL HARMONIC DISTORTION + NOISE (SE)
vs vs
OUTPUT POWER OUTPUT VOLTAGE
Figure 7. Figure 8.
CLOSED LOOP RESPONSE CLOSED LOOP RESPONSE
Figure 9. Figure 10.
8