The TDA8933B is a high-efficiency class D amplifier with low power dissipation

TDA8933B

Manufacturer Part NumberTDA8933B
DescriptionThe TDA8933B is a high-efficiency class D amplifier with low power dissipation
ManufacturerNXP Semiconductors
TDA8933B datasheet
 
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NXP Semiconductors
100
S/N
(dB)
(2)
80
(1)
60
40
20
0
2
1
10
10
1
R
= 0 ; 20 kHz brick wall filter AES17
i
(1) R
= 2
4
SE at V
= 17 V
L
P
(2) R
= 2
8
SE at V
= 25 V
L
P
Fig 16. Signal-to-noise ratio as a function of output
power
100
po
(%)
(1)
80
(2)
60
40
20
0
0
3
6
2 P
f
= 1 kHz;
=
------------------------ -
i
po
2 P
+
o
(1) R
= 2
4
SE at 17 V
L
(2) R
= 2
8
SE at 25 V
L
Fig 18. Output power efficiency as a function of
output power
TDA8933B_1
Preliminary data sheet
010aaa509
(dB)
2
10
10
P
(W)
o
Fig 17. Channel separation as a function of frequency
010aaa511
(W)
9
12
15
P
(W/channel)
o
o
P
Fig 19. Power dissipation as a function of output
Rev. 01 — 23 October 2008
TDA8933B
Class D audio amplifier
0
cs
20
40
60
80
100
2
3
10
10
10
10
P
= 1 W
o
(1) R
= 2
4
SE at V
= 17 V
L
P
(2) R
= 2
8
SE at V
= 25 V
L
P
3.0
P
2.0
(1)
1.0
0.0
2
1
10
10
1
P
f
= 1 kHz; Power dissipation in junction only
i
(1)
R
= 2
4
SE at 17 V
L
(2) R
= 2
8
SE at 25 V
L
power per channel (two channels driven)
010aaa510
(1)
(2)
4
5
10
f
(Hz)
i
010aaa512
(2)
2
10
10
(W/channel)
o
© NXP B.V. 2008. All rights reserved.
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