TA0103A Datasheet, PDF (6/18 Pages) Tripath Technology Inc. – Stereo 250W (4Ω) Class-T Digital Audio Amplifier Driver using Digital Power Processing (DPPTM) Technology

Typical Performance at Vs = +54V
10
20Hz - 22kHz BW
5
f = 1kHz
BBM = 65nS
Vs = +/-54V
Av = 20.75
2 ^{ST STW38NB20 MOSFET}
1
0.5
0.2
0.1
0.05
0.02
0.01
1
2
THD+N versus Output Power
R_L= 8Ω
R_L= 4Ω
5
10
20
50
100
200
Output Power (W)
Tripath Technology, Inc. - Technical Information
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency versus Output Power
RL = 4Ω & 8Ω
R_L = 8Ω
R_L = 4Ω
22Hz - 22kHz BW
f = 1kHz
BBM = 145nS
V_S = +/-54V
Av = 20.75
ST STW38NB20 MOSFET
50 100 150 200 250 300 350 400 450
Output Power (W)
10 20Hz - 22kHz BW
5
BBM = 65nS
Pout = 10W/Channel
2
Vs = +/-54V
Av = 20.75
1 ^{ST STW38NB20 MOSFET}
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10
20
50
THD+N versus Frequency
R_L = 4Ω
100
200
500
1k
2k
Frequency (Hz)
Intermodulation Performance
+10
10Hz - 80kHz BW
+0 _{19kHz, 20kHz, 1:1}
-10
BBM = 65nS
Pout = 36W/Channel
-20 ^VS ^{= +/-54V}
0dBr = 12Vrms
-30 Av = 20.75
ST STW38NB20 MOSFET
-40
HIGH BW (4RX)_LA=/D 4Ω
-50
-60
-70
-80
-90
-100
5k
10k 20k
60
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k 30k
Channel Separation versus Frequency
+0
-10
20Hz - 22kHz BW
BBM = 65nS
-20 Pout = 60W/Channel
-30
V_S = +/-54V
Av = 20.75
-40 ^{ST STW38NB20 MOSFET}
groundedR) _L = 4Ω
-50
-60
-70
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
+0
-10
20Hz - 22kHz BW
BBM = 65nS
-20 _{Pout = 0W}
-30 ^VS ^{= +/-54V}
-40
R_L = 4Ω
Av = 20.75
-50 ST STW38NB20 MOSFET
-60
-70
-80
-90
-100
-110
-120
-130
-140
20
50
100
A-Weighted Noise FFT
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
6
TA0103 – Rev 3.3/06.00