参数资料
型号: TDA8933BTW/N2,512
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32
封装: 6.10 MM, 0.65 MM PITCH, PLASTIC, SOT-249-1, HTSSOP-32
文件页数: 24/42页
文件大小: 245K
代理商: TDA8933BTW/N2,512
TDA8933B_1
NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 01 — 23 October 2008
30 of 42
NXP Semiconductors
TDA8933B
Class D audio amplier
Ri = 0 ; 20 kHz brick wall lter AES17
(1) RL = 2 × 4 SE at VP = 17 V
(2) RL = 2 × 8 SE at VP = 25 V
Po = 1 W
(1) RL = 2 × 4 SE at VP = 17 V
(2) RL = 2 × 8 SE at VP = 25 V
Fig 16. Signal-to-noise ratio as a function of output
power
Fig 17. Channel separation as a function of frequency
010aaa509
40
60
20
80
100
S/N
(dB)
0
Po (W)
102
102
10
101
1
(1)
(2)
010aaa510
60
40
80
20
0
αcs
(dB)
100
fi (Hz)
10
105
104
102
103
(1)
(2)
fi = 1 kHz;
(1) RL = 2 × 4 SE at 17 V
(2) RL = 2 × 8 SE at 25 V
fi = 1 kHz; Power dissipation in junction only
(1)
RL = 2 × 4 SE at 17 V
(2) RL = 2 × 8 SE at 25 V
Fig 18. Output power efciency as a function of
output power
Fig 19. Power dissipation as a function of output
power per channel (two channels driven)
Po (W/channel)
015
12
69
3
010aaa511
40
60
20
80
100
ηpo
(%)
0
(1)
(2)
010aaa512
Po (W/channel)
102
102
10
101
1
1.0
2.0
3.0
P
(W)
0.0
(1)
(2)
η
po
2P
o
×
2P
o
×
P
+
-------------------------
=
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