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TDA8932B Datasheet(PDF) 31 Page - NXP Semiconductors

Part No. TDA8932B
Description  Class-D audio amplifier
Download  48 Pages
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA8932B Datasheet(HTML) 31 Page - NXP Semiconductors

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TDA8932B_4
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 18 December 2008
31 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
fi = 1 kHz (short time PO); dashed line will require heat
sink for continuous time output power
(1) RL =2 × 4 Ω; THD+N = 10 %
(2) RL =2 × 4 Ω; THD+N = 0.5 %
(3) RL =2 × 8 Ω; THD+N = 10 %
(4) RL =2 × 8 Ω; THD+N = 0.5 %
fi = 1 kHz; power dissipation in junction only; short time
Po at THD+N = 10 %; dashed line will require heat sink
for continuous time output power
(1) RL =2 × 4 Ω
(2) RL =2 × 8 Ω
Fig 19. Output power per channel as a function of
supply voltage
Fig 20. Power dissipation as a function of supply
voltage
VP (V)
10
38
30
34
14
18
22
26
001aaf886
16
8
24
32
Po
(W/channel)
0
(4)
(1)
(2)
(3)
VP (V)
10
38
34
14
18
22
26
30
001aaf889
2
4
6
P
(W)
0
(2)
(1)
fi = 1 kHz;
(1) VP =22V; RL =2 × 4 Ω
(2) VP =30V; RL =2 × 8 Ω
fi = 1 kHz; power dissipation in junction only
(1) VP =22V; RL =2 × 4 Ω
(2) VP =30V; RL =2 × 8 Ω
Fig 21. Output power efficiency as a function of
output power per channel
Fig 22. Power dissipation as a function of output
power per channel (two channels driven)
Po (W/channel)
020
15
510
001aad780
40
60
20
80
100
ηpo
(%)
0
(2)
(1)
001aad781
1.0
2.0
3.0
P
(W)
0
Po (W/channel)
10−2
102
10
10−1
1
(2)
(1)
η
PO
2P
o
×
2P
o
p
+
×
-------------------------
=


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