參數(shù)資料
型號: TDA8925
廠商: NXP Semiconductors N.V.
元件分類: 運(yùn)動(dòng)控制電子
英文描述: Power stage 2 x 15 to 25Wclass-D audio amplifier
中文描述: 功率級2 × 15 25Wclass - D音頻放大器
文件頁數(shù): 9/23頁
文件大?。?/td> 214K
代理商: TDA8925
2004 May 06
9
Philips Semiconductors
Product specification
Power stage 2 x 15 to 25 W class-D
audio amplifier
TDA8925
13 AC CHARACTERISTICS
V
P
=
±
15 V; T
amb
= 25
°
C; unless otherwise specified.
Notes
1.
V
P
=
±
15 V; R
L
= 8
; f
i
= 1 kHz; f
osc
= 310 kHz; R
s
= 0.1
(series resistance of filter coil); T
amb
= 25
°
C; measured
in reference design (SE application) shown in Fig.5; unless otherwise specified.
Indirectly measured; based on R
ds(on)
measurement.
Total Harmonic Distortion (THD) is measured in a bandwidth of 22 Hz to 20 kHz (AES 17 brickwall filter). When
distortion is measured using a low-order low-pass filter a significantly higher value will be found, due to the switching
frequency outside the audio band. Measured using the typical application circuit, given in Fig.5.
Efficiency for power stage.
2.
3.
4.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Single-ended application;
note 1
P
o
output power
R
L
= 8
THD = 0.5 %
THD = 10 %
R
L
= 6
THD = 0.5 %
THD = 10 %
P
o
= 1 W; note 3
f
i
= 1 kHz
f
i
= 10 kHz
P
o
= 2
×
15 W; f
i
= 1 kHz; note 4
10
(2)
14
(2)
12
15
W
W
16
20
W
W
THD
total harmonic distortion
0.05
0.2
94
0.1
%
%
%
η
efficiency endstage
相關(guān)PDF資料
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