TAS5731M_15 Datasheet, PDF (16/81 Pages) Texas Instruments – TAS5731M 2 × 30-W Digital Audio Power Amplifier With DSP and 2.1 Mode

TAS5731M
SLOS838C – JULY 2013 – REVISED AUGUST 2015
7.14.2 Typical Characteristics, 2.0 BTL Configuration, 8 Ω
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45
2.0 BTL Mode
40 ^{TA = 25ƒC}
35
30
25
20
15
10
5
0
8
RL = 8ŸTHD+N = 1%
RL = 8ŸTHD+N = 10%
RL = 6ŸTHD+N = 1%
RL = 6ŸTHD+N = 10%
RL = 4ŸTHD+N = 1%
RL = 4ŸTHD+N = 10%
10 12 14 16 18 20 22 24
Supply Voltage (V)
C001
Figure 18. Output Power vs Supply Voltage (2.0 BTL Mode)
With 4ω Load on Typical 2 Layer PCB Device May Be
Thermally Limited Above 20 V
10
2.0 BTL Mode
PV_DD = 18V
f = 1kHz
T_A = 25ƒC
1
10
2.0 BTL Mode
PV_DD = 12V
f = 1kHz
T_A = 25ƒC
1
0.1
0.01
RL = 8Ÿ
RL = 6Ÿ
0.001
0.01
RL = 4Ÿ
0.1
1
10
100
Output Power (W)
C002
Figure 19. Total Harmonic Distortion + Noise vs Output
Power (2.0 BTL Mode)
10
2.0 BTL Mode
PV_DD = 24V
f = 1kHz
T_A = 25ƒC
1
0.1
0.1
0.01
RL = 8Ÿ
RL = 6Ÿ
0.001
0.01
RL = 4Ÿ
0.1
1
10
100
Output Power (W)
C003
Figure 20. Total Harmonic Distortion + Noise vs Output
Power (2.0 BTL Mode)
10
2.0 BTL Mode
PV_DD = 12V
P_O = 1W
T_A = 25ƒC
1
RL = 4Ÿ
RL = 6Ÿ
RL = 8Ÿ
0.01
RL = 8Ÿ
RL = 6Ÿ
0.001
0.01
0.1
1
Output Power (W)
RL = 4Ÿ
10
C004
Figure 21. Total Harmonic Distortion + Noise vs Output
Power (2.0 BTL Mode)
10
2.0 BTL Mode
PV_DD = 18V
P_O = 1W
T_A = 25ƒC
1
RL = 4Ÿ
RL = 6Ÿ
RL = 8Ÿ
0.1
0.1
0.01
0.01
0.001
20
200
2k
20k
Frequency (Hz)
C006
Figure 22. Total Harmonic Distortion vs Frequency (2.0
BTL Mode)
0.001
20
200
2k
20k
Frequency (Hz)
C007
Figure 23. Total Harmonic Distortion vs Frequency (2.0
BTL Mode)
16
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