參數(shù)資料
型號： TDA8924TH/N2,518
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 120 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24
封裝： PLASTIC, SOT-566-3, HSOP-24
文件頁數(shù)： 6/35頁
文件大小： 722K
代理商： TDA8924TH/N2,518
2003 Jul 28
14
Philips Semiconductors
Objective specication
2
× 120 W class-D power amplier
TDA8924
15 DYNAMIC AC CHARACTERISTICS (MONO BTL APPLICATION)
VP = ±24 V; RL =4 ; fi = 1 kHz; fosc = 310 kHz; RsL < 0.1 (note 1); Tamb =25 °C; measured in Fig.9; unless
otherwise specied.
Notes
1. RsL = series resistance of inductor of low-pass LC filter in the application.
2. Output power is measured indirectly; based on RDSon measurement.
3. Total harmonic distortion is measured in a bandwidth of 22 Hz to 22 kHz. When distortion is measured using a low
order low-pass filter a significant higher value will be found, due to the switching frequency outside the audio band.
Maximum limit is guaranteed but may not be 100 % tested.
4. Output power measured across the loudspeaker load.
5. Vripple =Vripple(max) = 2 V (p-p); fi = 100 Hz; Rs =0 .
6. Vripple =Vripple(max) = 2 V (p-p); fi = 1 kHz; Rs =0 .
7. B = 22 Hz to 22 kHz; Rs =0 ; maximum limit is guaranteed but may not be 100 % tested.
8. B = 22 Hz to 22 kHz; Rs =10k.
9. B = 22 Hz to 22 kHz; independent of Rs.
10. Vi =Vi(max) = 1 V (RMS); fi = 1 kHz; maximum limit is guaranteed but may not be 100 % tested.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Po
output power
RL =3 ; VP = ±20 V; THD = 0.5 %; note 2
160
W
RL =3 ; VP = ±20 V; THD = 10 %; note 2
205
W
RL =4 ; VP = ±20 V; THD = 0.5 %; note 2
135
W
RL =4 ; VP = ±20 V; THD = 10 %; note 2
175
W
RL =4 ; VP = ±24 V; THD = 0.5 %; note 2
200
W
RL =4 ; VP = ±24 V; THD = 10 %; note 2
240
W
THD
total harmonic distortion
Po = 1 W; note 3
fi = 100 Hz
0.015
%
fi = 1 kHz
0.015
0.05
%
fi =10kHz
0.015
%
Gv(cl)
closed loop voltage gain
34
dB
η
efciency
Po = 240 W; note 4
83
%
SVRR
supply voltage ripple
rejection
operating; fi = 100 Hz; note 5
49
dB
operating; fi = 1 kHz; note 6
36
44
dB
mute; fi = 100 Hz; note 5
49
dB
standby; fi = 100 Hz; note 5
80
dB
Z
i
input impedance
22
34
k
Vn(o)
noise output voltage
operating; Rs =0 ; note 7
280
560
V
operating; Rs =10k; note 8
300
V
mute; note 9
280
V
Vo(mute)
output signal in mute
note 10
500
V
CMRR
common mode rejection
ratio
Vi(CM) = 1 V (RMS)
75
dB
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