Tripath Technology, Inc. - Technical Information
T Y P I C A L P E R F O R M A N C E W I T H S I N G L E E N D E D I N P U T S A N D
F I L T E R E D O U T P U T S
THD+N versus Output Power
Efficiency versus Output Power
100
90
10
5
VDD = 12V
f = 1kHz
Gain1=0, Gain0=1
BW = 22Hz - 20kHz(AES17)
80
70
60
50
40
30
20
2
1
0.5
RL = 4Ω
0.2
0.1
RL = 6Ω
RL = 8Ω
RL = 16Ω
VDD =12V
f=L1kHz
0.05
R
= 8Ω
10
0
0.02
0.01
BW = 22Hz - 20kHz(AES17)
1
7
9
0
2
3
4
5
6
8
10
1
2
3
4
5
6
7
8
9
10
20
Output Pow er (Per Channel) - W
Output Power (W)
Intermodulation Distortion
Efficiency versus Output Power
+0
100
90
-10 19kHz, 20kHz, 1:1
VDD = 12V
-20
-30
Po = 1W
L = 8Ω
32k FFT
S = 65kHz
BW = 22Hz - 80kHz
80
70
60
50
40
30
20
R
F
-40
-50
-60
-70
-80
-90
-100
-110
VDD =12V
R = 6Ω
f=L1kHz
10
0
-120
-130
BW = 22Hz - 20kHz(AES17)
30k
20k
20
50
100
200
500
1k
2k
5k
10k
0
1
2
3
4
5
6
7
8
9
10
11
12
Frequency (Hz)
Output Pow er (Per Channel) - W
Channel Separation versus Frequency
THD+N versus Frequency
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
1
VDD = 12V
Po = 1W
RL = 8Ω
VDD = 12V
Po = 1W
.5
R
L = 8Ω
BW = 22Hz - 22kHz
BW = 22Hz - 22kHz
.2
.1
0.05
0.02
0.01
0.005
-100
-110
0.002
0.001
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
11
TAA2009 –KLi/1.02/ 05.06
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
