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TDA8920 数据表(PDF) 8 Page - NXP Semiconductors

部件名 TDA8920
功能描述  2 x 50 W class-D power amplifier
Download  16 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

TDA8920 数据表(HTML) 8 Page - NXP Semiconductors

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1998 Dec 01
8
Philips Semiconductors
Preliminary specification
2
× 50 W class-D power amplifier
TDA8920
AC CHARACTERISTICS
Stereo single-ended application
VDD = ±25 V; RL =8 Ω; fi = 1 kHz; Tamb =25 °C; measured in Fig.5; unless otherwise specified.
Notes
1. Total harmonic distortion is measured in a bandwidth of 22 Hz to 22 kHz, using an 11th-order low-pass filter. When
distortion is measured using a lower order low-pass filter a significantly higher value will be found, due to the
switching frequency outside the audio band.
2. Output power measured across the loudspeaker load.
3. Vripple =Vripple(max) = 2 V (p-p); fi = 100 Hz; Rs =0 Ω.
4. Vripple =Vripple(max) = 2 V (p-p); fi = 1 kHz; Rs =0 Ω.
5. B = 22 Hz to 22 kHz; Rs =0 Ω.
6. B = 22 Hz to 22 kHz; Rs =10kΩ.
7. B = 22 Hz to 22 kHz; independent of Rs.
8. Po = tbf W; Rs =0 Ω.
9. Vi =Vi(max) = 1 V (RMS).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Po
output power
THD = 0.5%
tbf
30
W
THD = 10%
tbf
35
W
THD = 0.5%; Vp = ±30 V
40
W
THD = 10%; Vp = ±30 V
50
W
THD
total harmonic distortion
Po = 1 W; note 1
fi = 1 kHz
0.1
0.15
%
fi = 10 kHz
0.2
%
Gv(cl)
closed loop voltage gain
29
30
31
dB
η
efficiency
Po = tbf W; fi = 1 kHz; note 2
85
90
%
SVRR
supply voltage ripple
rejection
on; note 3
60
dB
on; note 4
tbf
tbf
dB
mute; note 3
60
dB
standby; note 3
80
dB
Z
i
input impedance
80
120
k
Vn(o)
noise output voltage
on; note 5
100
200
µV
on; note 6
tbf
−µV
mute; note 7
100
−µV
α
cs
channel separation
note 8
50
tbf
dB
∆G
v
channel unbalance
−−
1dB
Vo
output signal
mute; note 9
−−
500
µV
CMRR
common mode rejection ratio Vi(CM)(rms) =1V
65
dB


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