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| TDA8933 Datasheet, PDF (38/47 Pages) NXP Semiconductors – Class-D audio amplifier | |||
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NXP Semiconductors
TDA8933
Class-D audio ampliï¬er
45
Gv
(dB)
35
25
010aaa154
(1)
(2)
15
10
102
103
Po = 1 W (RMS)
(1) VP = 17 V; RL = 8 â¦
(2) VP = 25 V; RL = 16 â¦
Fig 31. Gain as a function of frequency
104
105
fi (Hz)
100
ηpo
(%)
75
50
25
010aaa150
(2)
(1)
3.0
P
(W)
2.0
1.0
010aaa151
(1)
(2)
0
0
10
20
30
Po (W)
0.0
10â2
10â1
1
10
102
Po (W/channel)
ηpo = Po / (Po + P)
(1) VP = 17 V; RL = 8 â¦; fi = 1 kHz
(2) VP = 25 V; RL = 16 â¦; fi = 1 kHz
Fig 32. Output power efï¬ciency as a function of output
power
Power dissipation in junction only.
(1) VP = 17 V; RL = 8 â¦; fi = 1 kHz
(2) VP = 25 V; RL = 16 â¦; fi = 1 kHz
Fig 33. Power dissipation as a function of output power
TDA8933_1
Preliminary data sheet
Rev. 01 â 15 May 2007
© NXP B.V. 2007. All rights reserved.
38 of 47
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