TAS5760LD Datasheet, PDF (18/68 Pages) Texas Instruments – General Purpose I2S Input Class D Amplifier with DirectPath™ Headphone / Line Driver

TAS5760LD
SLOS781A – JULY 2013 – REVISED JULY 2015
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Typical Speaker Amplifier Performance Characteristics (Stereo BTL Mode) (continued)
At T_A = 25°C, f_{SPK_AMP} = 768 kHz, input signal is 1 kHz Sine, unless otherwise noted.
Filter used for 8 Ω = 22 µH + 0.68 µF, Filter used for 6 Ω = 15 µH + 0.68 µF, Filter used for 4 Ω = 10 µH + 0.68 µF unless
otherwise noted.
100
95 ^{RL = 8 Ω}
90
85
80
0
−10 ^{PVDD = 15 V}
−20 ^{RL = 4 Ω}
−30
−40
−50
Right-to-Left
Left-to-Right
75
−60
70
65
60
55
50
0
PVDD = 12 V
PVDD = 15 V
5
10
15
20
25
30
Total Output Power (W)
G014
−70
−80
−90
−100
−110
−120
20
100
1k
Frequency (Hz)
10k 20k
G018
Figure 20. Efficiency vs Output Power
Figure 21. Crosstalk vs Frequency
0
PVDD = 12 V
−10 _{RL = 8 Ω}
−20
60
R_L = 8 Ω
55
−30
50
−40
−50
45
−60
−70
40
−80
−90
20
100
1k
10k 20k
Frequency (Hz)
G019
Figure 22. PVDD PSRR vs Frequency
60
R_L = 8 Ω
35
8
9 10 11 12 13 14 15 16
PVDD (V)
G045
Figure 23. Idle Current Draw vs PVDD (Filterless)
50
R_L = 8 Ω
55
47
50
44
45
41
40
38
35
8
9 10 11 12 13 14 15 16
PVDD (V)
G045
Figure 24. Idle Current Draw vs PVDD (with LC Filter as
shown on EVM)
35
8
9 10 11 12 13 14 15 16
PVDD (V)
G022
Figure 25. Shutdown Current Draw vs PVDD (Filterless)
18
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