TPA3140D2_15 Datasheet, PDF (9/40 Pages) Texas Instruments – TPA3140D2 10-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMI and AGL

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TPA3140D2
SLOS882A – JANUARY 2015 – REVISED APRIL 2015
Typical Characteristics (continued)
All Measurements taken at 20dB closed loop gain, 1-kHz audio, T_A = 25°C unless otherwise noted. Measurements were
made with AES17 filter using the TPA3140D2 EVM, which is available at ti.com.
28
40
100
90
24
20
80
70
20
0
60
50
16
-20
40
30
12
-40
8
-60
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency
D007
AVCC=PVCC = 12 V, Load = 6 Ω + 47 µH (device pins)
Figure 7. Gain/Phase vs Frequency (BTL)
20
PVcc = 6V
10
PVcc = 12V
PVcc = 14.4V
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25
Total Output Power (W)
D008
AVCC=PVCC = 6 V, 12 V, 14.4 V, Load = 6 Ω + 47 µH, AGL +
PLIM disable (LIMRATE = GND, LIMTHRES = GVDD)
Figure 8. Efficiency vs Output Power, 1SPW (BTL)
100
90
80
70
60
50
40
30
20
PVcc = 6V
10
PVcc = 13V
PVcc = 14.4V
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25
Output Power (W)
D009
AVCC=PVCC= 6 V, 13 V, 14.4 V, Load = 8 Ω + 66 µH, AGL +
PLIM disable (LIMRATE = GND, LIMTHRES = GVDD)
Figure 9. Efficiency vs Output Power, 1SPW (BTL)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
Ch 1
Ch 2
-120
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
D010
AVCC=PVCC = 12 V, 1 W, Load = 6 Ω + 47 µH
Figure 10. Crosstalk vs Frequency, 1SPW (BTL)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
20
50 100 200 500 1k 2k
Frequency (Hz)
AVCC=PVCC = 12 V, Load = 4 Ω + 33 µH
5k 10k 20k
D011
10
5
1W
5W
2
10 W
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
D012
AVCC=PVCC = 13 V, Load = 4 Ω + 33 µH, 1 W, 2.5 W, 10 W
Figure 11. Supply Ripple Rejection Ratio vs Frequency
(BTL)
Figure 12. Total Harmonic Distortion + Noise vs Frequency,
1SPW (PBTL)
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