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TS4990 数据表(PDF) 9 Page - STMicroelectronics

部件名 TS4990
功能描述  1.2 W audio power amplifier with active low standby mode
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4990 数据表(HTML) 9 Page - STMicroelectronics

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TS4990
Electrical characteristics
9/32
Figure 8.
PSRR vs. power supply
Figure 9.
PSRR vs. power supply
100
1000
10000
100000
-70
-60
-50
-40
-30
-20
-10
0
Vcc :
2.2V
2.6V
3.3V
5V
Vripple = 200mVpp
Av = 2
Input = Grounded
Cb = Cin = 1
μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)
100
1000
10000
100000
-50
-40
-30
-20
-10
0
Vcc :
2.2V
2.6V
3.3V
5V
Vripple = 200mVpp
Av = 10
Input = Grounded
Cb = Cin = 1
μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)
Figure 10.
PSRR vs. power supply
Figure 11.
PSRR vs. power supply
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
0
Vcc = 2.2, 2.6, 3.3, 5V
Vripple = 200mVpp
Rfeed = 22k
Ω
Input = Floating
Cb = 1
μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)
100
1000
10000
100000
-60
-50
-40
-30
-20
-10
0
Vcc :
2.2V
2.6V
3.3V
5V
Vripple = 200mVpp
Av = 5
Input = Grounded
Cb = Cin = 1
μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)
Figure 12.
PSRR vs. power supply
Figure 13.
PSRR vs. power supply
100
1000
10000
100000
-60
-50
-40
-30
-20
-10
0
Vcc = 5, 3.3, 2.5 & 2.2V
Vripple = 200mVpp
Av = 2
Input = Grounded
Cb = 0.1
μF, Cin = 1μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
0
Vcc = 2.2, 2.6, 3.3, 5V
Vripple = 200mVpp
Rfeed = 22k
Ω
Input = Floating
Cb = 0.1
μF
RL >= 4
Ω
Tamb = 25
°C
Frequency (Hz)



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