TDA8933B NXP Semiconductors, TDA8933B Datasheet - Page 30

• Manufacturer Part Number: TDA8933B
• Description: The TDA8933B is a high-efficiency class D amplifier with low power dissipation
• Manufacturer: NXP Semiconductors

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