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參數(shù)資料
| 型號： | TDA8920TH/N1,118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 80 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | PLASTIC, SOT-566-3, HSOP-24 |
| 文件頁數(shù)： | 6/36頁 |
| 文件大?。?/td> | 733K |
| 代理商： | TDA8920TH/N1,118 |
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2002 Sep 25
14
Philips Semiconductors
Product specication
2
× 80 W class-D power amplier
TDA8920
14 DYNAMIC AC CHARACTERISTICS (STEREO AND DUAL SE APPLICATION)
VP = ±25 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 lower
order low-pass filter a significantly higher value is 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.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Po
output power
RL =8 ; VP = ±20 V; THD = 0.5%; note 2 18
20
W
RL =8 ; VP = ±20 V; THD = 10%; note 2
23
25
W
RL =8 ; VP = ±25 V; THD = 0.5%; note 2 28
30
W
RL =8 ; VP = ±25 V; THD = 10%; note 2
36
39
W
RL =4 ; VP = ±25 V; THD = 0.5%; note 2 51
55
W
RL =4 ; VP = ±25 V; THD = 10%; note 2
65
70
W
RL =4 ; VP = ±27 V; THD = 0.5%; note 2 60
65
W
RL =4 ; VP = ±27 V; THD = 10%; note 2
74
80
W
THD
total harmonic distortion
Po = 1 W; note 3
fi = 1 kHz
0.02
0.05
%
fi = 10 kHz
0.15
%
Gv(cl)
closed-loop voltage gain
29
30
31
dB
η
efciency
Po = 30 W; SE: RL =2 × 8 ; fi = 1 kHz;
note 4
85
90
%
SVRR
supply voltage ripple
rejection
on; fi = 100 Hz; note 5
55
dB
on; fi = 1 kHz; note 6
40
50
dB
mute; fi = 100 Hz; note 5
55
dB
standby; fi = 100 Hz; note 5
80
dB
Z
i
input impedance
45
68
k
Vn(o)
noise output voltage
on; Rs =0 ; note 7
200
400
V
on; Rs =10k; note 8
230
V
mute; note 9
220
V
αcs
channel separation
note 10
70
dB
G
v
channel unbalance
1dB
Vo(mute)
output signal in mute
note 11
400
V
CMRR
common mode rejection ratio Vi(CM) = 1 V (RMS)
75
dB
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