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TDA8925 データシート(PDF) 9 Page - NXP Semiconductors

部品番号 TDA8925
部品情報  Power stage 2 x 15 to 25Wclass-D audio amplifier
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8925 データシート(HTML) 9 Page - NXP Semiconductors

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2004 May 06
9
Philips Semiconductors
Product specification
Power stage 2 x 15 to 25 W class-D
audio amplifier
TDA8925
13 AC CHARACTERISTICS
VP = ±15 V; Tamb =25 °C; unless otherwise specified.
Notes
1. VP = ±15 V; RL =8 Ω;fi = 1 kHz; fosc = 310 kHz; Rs = 0.1 Ω (series resistance of filter coil); Tamb =25 °C; measured
in reference design (SE application) shown in Fig.5; unless otherwise specified.
2. Indirectly measured; based on Rds(on) measurement.
3. 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.
4. Efficiency for power stage.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Single-ended application; note 1
Po
output power
RL =8 Ω
THD = 0.5 %
10(2)
12
−
W
THD = 10 %
14(2)
15
−
W
RL =6 Ω
THD = 0.5 %
−
16
−
W
THD = 10 %
−
20
−
W
THD
total harmonic distortion
Po = 1 W; note 3
fi = 1 kHz
−
0.05
0.1
%
fi = 10 kHz
−
0.2
−
%
η
efficiency endstage
Po =2 × 15 W; fi = 1 kHz; note 4
−
94
−
%


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