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TS4994 Fiches technique(PDF) 24 Page - STMicroelectronics

No de pièce TS4994
Description  1W differential input/output audio power amplifier with selectable standby
PDF  35 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4994 Fiches technique(HTML) 24 Page - STMicroelectronics

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Application information
TS4994
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The three following graphs show PSRR versus frequency and versus bypass capacitor Cb in
worst-case conditions (
ΔR = 0.1%).
Figure 70.
PSRR vs. frequency (worst case
conditions)
Figure 71.
PSRR vs. frequency (worst case
conditions)
Figure 72.
PSRR vs. frequency (worst case
conditions)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 5V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
Frequency (Hz)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 3.3V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
Frequency (Hz)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 2.5V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
Frequency (Hz)



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