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TS4990IDT Scheda tecnica(PDF) 11 Page - STMicroelectronics

Il numero della parte TS4990IDT
Spiegazioni elettronici  1.2 W audio power amplifier with active low standby mode
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4990IDT Scheda tecnica(HTML) 11 Page - STMicroelectronics

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TS4990
Electrical characteristics
11/32
Figure 20.
PSRR vs. DC output voltage
Figure 21.
PSRR vs. DC output voltage
-2.5 -2.0 -1.5 -1.0 -0.5
0.0
0.5
1.0
1.5
2.0
2.5
-70
-60
-50
-40
-30
-20
-10
0
Vcc = 2.6V
Vripple = 200mVpp
RL = 8
Ω
Cb = 1
μF
AV = 2
Tamb = 25
°C
Differential DC Output Voltage (V)
-2.5 -2.0 -1.5 -1.0 -0.5
0.0
0.5
1.0
1.5
2.0
2.5
-50
-40
-30
-20
-10
0
Vcc = 2.6V
Vripple = 200mVpp
RL = 8
Ω
Cb = 1
μF
AV = 10
Tamb = 25
°C
Differential DC Output Voltage (V)
Figure 22.
Output power vs. power supply
voltage
Figure 23.
PSRR vs. DC output voltage
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
THD+N=10%
RL = 4
Ω
F = 1kHz
BW < 125kHz
Tamb = 25
°C
THD+N=1%
Vcc (V)
-2.5 -2.0 -1.5 -1.0 -0.5
0.0
0.5
1.0
1.5
2.0
2.5
-60
-50
-40
-30
-20
-10
0
Vcc = 2.6V
Vripple = 200mVpp
RL = 8
Ω
Cb = 1
μF
AV = 5
Tamb = 25
°C
Differential DC Output Voltage (V)
Figure 24.
PSRR at F = 217 Hz vs.
bypass capacitor
Figure 25.
Output power vs. power supply
voltage
0.1
1
-80
-70
-60
-50
-40
-30
Av=10
Vcc:
2.6V
3.3V
5V
Av=5
Vcc:
2.6V
3.3V
5V
Av=2
Vcc:
2.6V
3.3V
5V
Tamb=25
°C
Bypass Capacitor Cb ( F)
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
THD+N=10%
RL = 8
Ω
F = 1kHz
BW < 125kHz
Tamb = 25
°C
THD+N=1%
Vcc (V)


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