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TS4890 Fiches technique(PDF) 8 Page - STMicroelectronics

No de pièce TS4890
Description  RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4890 Fiches technique(HTML) 8 Page - STMicroelectronics

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Fig. 13 : Power Supply Rejection Ratio (PSRR)
vs Power supply
Fig. 15 : Power Supply Rejection Ratio (PSRR)
vs Bypass Capacitor
Fig. 17 : Power Supply Rejection Ratio (PSRR)
vs Feedback Resistor
Fig. 14 : Power Supply Rejection Ratio (PSRR)
vs Feedback Capacitor
Fig. 16 : Power Supply Rejection Ratio (PSRR)
vs Input Capacitor
Fig. 18 : Pout @ THD + N = 1% vs Supply
Voltage vs RL
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
Vcc = 5V to 2.2V
Cb = 1
µF & 0.1µF
Vripple = 200mVrms
Rfeed = 22k
Ω
Input = floating
RL = 8
Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Cb=47
µF
Cb=100
µF
Cb=10
µF
Cb=1
µF
Vcc = 5 to 2.2V
Rfeed = 22k
Rin = 22k, Cin = 1
µF
Rg = 100
Ω, RL = 8Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Rfeed=22k
Ω
Rfeed=10k
Ω
Rfeed=47k
Ω
Rfeed=110k
Ω
Vcc = 5 to 2.2V
Cb = 1
µF & 0.1µF
Vripple = 200mVrms
Input = floating
RL = 8
Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Cfeed=680pF
Cfeed=330pF
Cfeed=150pF
Cfeed=0
Vcc = 5 to 2.2V
Cb = 1
µF & 0.1µF
Rfeed = 22k
Ω
Vripple = 200mVrms
Input = floating
RL = 8
Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-60
-50
-40
-30
-20
-10
Cin=22nF
Cin=100nF
Cin=220nF
Cin=330nF
Cin=1
µF
Vcc = 5 to 2.2V
Rfeed = 22k, Rin = 22k
Cb = 1
µF
Rg = 100
Ω, RL = 8Ω
Tamb = 25
°C
Frequency (Hz)
2.5
3.0
3.5
4.0
4.5
5.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
32
Ω
16
Ω
4
Ω
6
Ω
Gv = 2 & 10
Cb = 1
µF
F = 1kHz
BW < 125kHz
Tamb = 25
°C
8
Ω
Vcc (V)


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