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TDA8933 Datasheet, PDF (34/47 Pages) NXP Semiconductors – Class-D audio amplifier
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NXP Semiconductors
TDA8933
Class-D audio amplifier
20
Po
(W)
15
10
5
010aaa206
(1)
(2)
(3)
(4)
0
10
20
30
40
VP (V)
fi = 1 kHz
(1) RL = 2 × 8 Ω SE; THD = 10 %
(2) RL = 2 × 8 Ω SE; THD = 0.5 %
(3) RL = 2 × 4 Ω SE; THD = 10 %
(4) RL = 2 × 4 Ω SE; THD = 0.5 %
Fig 22. Output power per channel as a function of
supply voltage
20
Po
(W/channel)
16
(2)
12
(1)
8
010aaa205
4
0
0
150
300
450
600
time (s)
(1) VP = 25 V
(2) VP = 31 V
2 layer application board (55 mm × 45 mm), 35 µ
copper, FR4 base material in free air with natural
convection.
a. RL = 2 × 8 Ω SE; fi = 1 kHz
Fig 24. Output power as a function of time
5.0
P
(W)
4.0
010aaa207
(2)
3.0
(1)
2.0
1.0
0.0
10
18
26
34
42
VP (V)
fi = 1 kHz; power dissipation in junction only; short
time PO at THD+N = 10 %
(1) RL = 2 × 4 Ω SE
(2) RL = 2 × 8 Ω SE
Fig 23. Power dissipation as a function of supply
voltage
10
Po
(W/channel)
(1)
8
010aaa229
6
4
2
0
0
150
300
450
600
time (s)
(1) VP = 17 V
b. RL = 2 × 4 Ω SE; fi = 1 kHz
TDA8933_1
Preliminary data sheet
Rev. 01 — 15 May 2007
© NXP B.V. 2007. All rights reserved.
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