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
80
60
40
20
0
10
5
RL = 8Ω
f = 1kHz
BBM = 80nS
Vs =+45V
RL = 4Ω
BW = 22Hz - 22kHz
2
1
R = 8Ω
R = 4Ω
L
L
0.5
0.2
0.1
f = 1kHz
0.05
BBM = 80nS
Vs =+45V
THD+N<10%
0.02
0.01
0
50
100
150
200
250
300
2
5
10
20
50
100
200
500
Output Power (W)
Output Power (W)
Intermodulation Performance
R = 8Ω
Intermodulation Performance
RL = 4Ω
L
+0
+0
19kHz, 20kHz, 1:1
-10
19kHz, 20kHz, 1:1
Pout = 60W/Channel
0dBr = 15.5Vrms
Vs = +45V
-10
Pout = 30W/Channel
0dBr = 15.5Vrms
Vs =+45V
-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
20
50
100
200
500
1k
2k
5k
10k
20k
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
Channel Separation versus Frequency
Noise Floor
-40
-45
-70
-75
Pout = 60W/Channel @Ω 4
Pout = 30W/Channel @Ω 8
VS =+45V
S
V
= +/-45V
BBM = 80nS
-50
-55
16kFFT
BW = 22Hz - 22kHz
S
F
= 48kHz
-80 BW = 22Hz-22kHz
-60
-65
-85
-90
-70
-75
-80
-95
-85
R
= 4
Ω
L
-100
-105
-90
-95
-100
-105
-110
-115
R
L = 8Ω
-110
-115
-120
-120
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
TA3020, Rev 2.1, 01.01
13