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TDA7491P 数据表(PDF) 28 Page - STMicroelectronics

部件名 TDA7491P
功能描述  2 x 10-watt dual BTL class-D audio amplifier
PDF  42 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7491P 数据表(HTML) 28 Page - STMicroelectronics

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Characterization curves
TDA7491P
28/42
Doc ID 13540 Rev 6
Figure 36.
FFT (-60 dB)
Figure 37.
Power supply rejection ratio vs. frequency
Figure 38.
Power dissipation and efficiency vs. output power
Frequency (Hz)
FFT (dB)
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
20
20k
50
100
200
500
1k
2k
5k
10k
Specification Limit:
Typical: > 90dB
for the harmonic frequency
Test Condition:
Vcc =12V,
RL= 8 ohm,
Rosc =39k
Ω, Cosc =100nF,
f =1kHz,
Gv =30dB,
Po = -60dB (@ 1W =0dB)
Tamb =25
℃
Test Condition:
Vcc =12V,
RL= 8 ohm,
Rosc =39k
Ω, Cosc =100nF,
f =1kHz,
Gv =30dB,
0dB refers to 500mV, 100Hz,
Tamb =25
℃
8ohm 12v PSRR.at27
-100
+0
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
Ripple frequency=100Hz
Ripple voltage=500mV
Test Condition:
Vcc =12V,
RL= 8 ohm,
Rosc =39k
Ω, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25
℃
0
10
20
30
40
50
60
70
80
90
100
02
4
6
8
10
Output power per channel (W)
0
0.5
1
1.5
2
2.5
Vcc=12V
Rload=8ohm
Gain=30dB
f=1kHz



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