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TPA2000D1 Datasheet(PDF) 6 Page - Texas Instruments

Part No. TPA2000D1
Description  2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TPA2000D1 Datasheet(HTML) 6 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
TEST SETUP FOR GRAPHS
50
30
20
0
0
0.5
1
1.5
2
70
80
100
2.5
3
3.5
10
40
60
90
PO − Output Power − W
RL = 3 Ω, 33 µH
Class-AB,
RL = 4 Ω
RL = 4 Ω, 33 µH
RL = 8 Ω, 33 µH
TPA2000D1
SLOS328F – JUNE 2000 – REVISED MARCH 2004
FIGURE
η
Efficiency
vs Output power
1
FFT at 1.5-W output power
vs Frequency
2
vs Output power
3, 4, 5
THD+N
Total harmonic distortion plus noise
vs Frequency
6, 7
k(SRR)
Supply ripple rejection ratio
vs Frequency
8
The THD+N measurements shown do not use an LC output filter, but do use a 100-
Ω, 0.047-µF RC low-pass
filter with a cutoff frequency of ~30 kHz before the audio analyzer so the switching frequency does not dominate
the measurement. This is done to ensure that the THD+N measured is just the audible THD+N. The THD+N
measurements are shown at the highest gain for worst case. The efficiency was measured with no filters, and a
3-
Ω, 4-Ω, or 8-Ω resistor in series with a 33-µH inductor as the load.
EFFICIENCY
vs
OUTPUT POWER
Figure 1.
6


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