T E C H N I C A L I N F O R M A T I O N
Typical Performance
Efficiency versus Output Power
THD+N versus Output Power
100
10
5
R = 8
Ω
L
f = 1kHz
90
BBM = 80nS
Vs =+28V
R = 4
Ω
L
80
BW = 22Hz - 22kHz
2
1
70
60
50
40
30
20
10
0
R = 8Ω
R = 4Ω
L
L
0.5
0.2
0.1
f = 1kHz
BBM = 80nS
Vs =+28V
0.05
THD+N =<10%
0.02
0.01
2
5
10
20
50
100
200
0
20
40
60
80
100
120
Output Power (W)
Output Power (W)
Intermodulation Performance
Intermodulation Performance
R = 4
R = 8
Ω
Ω
L
L
+0
+0
-10
-10
19kHz, 20kHz, 1:1
Pout = 40W/Channel
0dBr = 12.65Vrms
Vs =+28V
19kHz, 20kHz, 1:1
Pout = 20W/Channel
0dBr = 12.65Vrms
Vs =+28V
-20
-30
-20
-30
BW = 22Hz - 22kHz
BW = 22Hz - 22kHz
-40
-40
-50
-50
-60
-60
-70
-70
-80
-80
-90
-90
-100
-110
-100
-110
-120
20
-120
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
Noise Floor
Channel Separation versus Frequency
-70
-75
-40
-45
V =+28V
S
Pout = 40W/Channel @Ω 4
Pout = 20W/Channel @Ω 8
BBM = 80nS
16K FFT
-50
VS =+28V
Fs = 48kHz
-55 BW = 22Hz - 22kHz
-80
-85
-90
-95
BW = 22Hz - 22kHz
-60
-65
-70
-75
-80
-85
-100
-105
-110
-115
-120
R
L = 4Ω
-90
-95
-100
-105
-110
-115
RL = 8Ω
-120
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
Frequency (Hz)
1k
2k
5k
10k
20k
Frequency (Hz)
TA3020, Rev 2.1, 01.01
11
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
