TPA3113D2_10 Datasheet, PDF (12/33 Pages) Texas Instruments – 6-W FILTER-FREE STEREO CLASS-D AUDIO POWER AMPLIFIER WITH SPEAKERGUARD™

TPA3113D2
SLOS650C – AUGUST 2009 – REVISED JULY 2010
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TYPICAL CHARACTERISTICS (continued)
(All Measurements taken at 1 kHz, unless otherwise noted. Measurements were made using the TPA3113D2 EVM which is
available at ti.com.)
EFFICIENCY
vs
OUTPUT POWER (BTL with LC FILTER)
SUPPLY CURRENT
vs
TOTAL OUTPUT POWER (BTL)
100
1.2
Gain = 20 dB
90
Z_L = 8 Ω + 66 µH
1.0
80
70
0.8
V_CC = 12 V
60
50
0.6
V_CC = 18 V
40
30
0.4
V_CC = 24 V
20
Gain = 20 dB
10
LC Filter = 22 µH + 0.68 µF
R_L = 4 Ω
0
0 1 2 3 4 5 6 7 8 9 10
PO − Output Power − W
G034
NOTE: Dashed line represents thermally limited region.
Figure 22.
0.2
0.0
0123456789
P_O(Tot) − Total Output Power − W
NOTE: Dashed lines represent thermally limited region.
Figure 23.
10
G021
CROSSTALK
vs
FREQUENCY (BTL)
−20
Gain = 20 dB
−30 _{VCC = 12 V}
−40 ^{VO = 1 Vrms}
Z_L = 8 Ω + 66 µH
−50
−60
−70
−80
Right to Left
−90
−100
−110
Left to Right
−120
−130
20
100
1k
f − Frequency − Hz
Figure 24.
10k 20k
G023
SUPPLY RIPPLE REJECTION RATIO
vs
FREQUENCY (BTL)
0
Gain = 20 dB
V_ripple = 200 mV_pp
−20 Z_L = 8 Ω + 66 µH
−40
−60
V_CC = 12 V
−80
−100
−120
20
100
1k
f − Frequency − Hz
Figure 25.
10k 20k
G024
12
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