TPA2017D2 Datasheet, PDF (8/20 Pages) Texas Instruments – 2.8-W/Ch Stereo Class-D Audio Amplifier with SmartGainTM Dynamic Range Compression and AGC

TPA2017D2
SLOS584 – APRIL 2009 ..................................................................................................................................................................................................... www.ti.com
100
90
80
70
60
50
40
30
20
10
0
0.0
EFFICIENCY
vs
OUTPUT POWER (PER CHANNEL)
V_DD = 3.6 V
V_DD = 2.5 V
V_DD = 5 V
f_IN = 1 kHz
Gain = 6 dB
R_L = 8 Ω + 33 µH
0.5
1.0
1.5
2.0
P_O − Output Power (Per Channel) − W
G010
Figure 9.
TOTAL POWER DISSIPATION
vs
TOTAL OUTPUT POWER
0.30
f_IN = 1 kHz
0.25 ^{Gain = 6 dB}
R_L = 8 Ω + 33 µH
0.20
V_DD = 3.6 V
0.15 _{VDD = 2.5 V}
0.10
V_DD = 5 V
0.05
0.00
0
1
2
3
P_O − Total Output Power − W
Figure 11.
4
G012
TOTAL SUPPLY CURRENT
vs
TOTAL OUTPUT POWER
1.0
0.9
0.8
0.7
V_DD = 3.6 V
0.6
0.5 ^VDD ^{= 2.5 V}
V_DD = 5 V
0.4
0.3
0.2
f_IN = 1 kHz
0.1
Gain = 6 dB
R_L = 8 Ω + 33 µH
0.0
0
1
2
3
4
P_O − Total Output Power − W
G014
Figure 13.
100
90
80
70
60
50
40
30
20
10
0
0.0
EFFICIENCY
vs
OUTPUT POWER (PER CHANNEL)
V_DD = 2.5 V
V_DD = 3.6 V
V_DD = 5 V
f_IN = 1 kHz
Gain = 6 dB
R_L = 4 Ω + 33 µH
0.5
1.0
1.5
2.0
2.5
3.0
P_O − Output Power (Per Channel) − W
G011
Figure 10.
TOTAL POWER DISSIPATION
vs
TOTAL OUTPUT POWER
1.0
0.9 ^{fIN = 1 kHz}
Gain = 6 dB
0.8 _{RL = 4 Ω + 33 µH}
0.7
0.6
V_DD = 3.6 V
0.5
V_DD = 2.5 V
0.4
0.3
V_DD = 5 V
0.2
0.1
0.0
0
1
2
3
4
5
P_O − Total Output Power − W
Figure 12.
6
G013
TOTAL SUPPLY CURRENT
vs
TOTAL OUTPUT POWER
1.4
1.2
V_DD = 5 V
V_DD = 3.6 V
1.0
0.8 ^{VDD = 2.5 V}
0.6
0.4
0.2
0.0
0
f_IN = 1 kHz
Gain = 6 dB
R_L = 4 Ω + 33 µH
1
2
3
4
5
6
P_O − Total Output Power − W
G015
Figure 14.
8
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