TA0102A Datasheet, PDF (6/12 Pages) Tripath Technology Inc. – STEREO 150W (4Ω) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPPTM) TECHNOLOGY

Tripath Technology, Inc. - Technical Information
Typical Performance at Vs = +45V
10
20Hz - 22kHz BW
f = 1kHz
5 ^{BBM = 25nS}
Vs = +/-45V
Av = 14.8
ST STP19NB20 MOSFET
2
1
0.5
THD+N versus Output Power
0.2
R_L = 8Ω
0.1
0.05
R_L = 4Ω
0.02
0.01
1
2
5
10
20
50
Output Power (W)
THD+N versus Frequency
R_L = 4Ω
10 _{20Hz - 22kHz BW}
5 BBM = 25nS
Pout = 30W/Channel
2 _{VS = +/-45V}
1 Av = 14.8
0.5 ^{ST STP19NB20 MOSFET}
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10
20
50
100 200
500
1k
2k
Frequency (Hz)
100
200
5k
10k 20k
Efficiency versus Output Power
RL = 4Ω
90
80
70
60
50
40
30
20
10
0
0
22Hz - 22kHz BW
f = 1kHz
BBM = 145nS
V_S = +/-45V
Av = 20.75
ST STP19NB20 MOSFET
50
100
150
200
250
Output Power (W)
+10
+0
-10
-20
-30
10Hz - 80kHz BW
19kHz, 20kHz, 1:1
BBM = 25nS
Pout = 30W/Channel
V_S = +/-45V
0dBr = 11Vrms
Av = 14.8
ST STP19NB20 MOSFET
-40
-50
-60
-70
-80
-90
-100
60 100
200
Intermodulation Performance
R_L = 4Ω
500
1k
2k
5k
Frequency (Hz)
10k
20k 30k
Channel Separation versus Frequency
+0
20Hz - 22kHz BW
-10 _{BBM = 25nS}
R_L = 4Ω
-20 ^{Pout = 30W/Channel}
V_S = +/-45V
-30 Av = 14.8
-40 ^{ST STP19NB20 MOSFET}
-50
+0
-10 ^{20Hz - 22kHz BW}
BBM = 25nS
-20 Pout = 0
-30
V_S = +/-45V
R_L = 4Ω
-40 Av = 14.8
ST STP19NB20 MOSFET
-50
-60
A-Weighted Noise FFT
-60
-70
-80
-70
-90
-80
-100
-90
-100
-110
-120
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
6
TA0102A, Rev. 3.1/06.01