TS4973 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
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Lista de partido
TS4973
STMicroelectronics
TS4973 Datasheet PDF : 19 Pages
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Electrical Characteristics
TS4973
Figure 8: Power supply rejection ratio (PSRR)
Figure 11: Signal to noise ratio vs power
supply with a weighted filter
0
Vripple = 200mVpp
-10 Input = Floating
-20 Cb = 1µF
RL ≥ 4Ω
-30 Tamb = 25°C
Vcc :
2.8V
3.3V
5V
110
100
RL=16Ω
90
RL=8Ω
RL=4Ω
-40
-50
-60
-70
-80
100
1000
10000
Frequency (Hz)
100000
80
70
60
2.8 3.0
3.5
4.0
Vcc (V)
Av = 2
Cb = Cin = 1µF
THD+N < 0.5%
Tamb = 25°C
4.5
5.0
) Figure 9: Crosstalk between inputs vs
t(s frequency
uc 0
rod RL ≥ 4Ω
-20 Gain setting = GND
Av = 2
P In2 = Grounded
te -40 Cb = 1µF
Bw < 125kHz
le Tamb = 25°C
-60
Vcc=5V, Vin1=0.27Vrms
Vcc=2.8V, Vin1=0.15Vrms
so -80
Ob -100
t(s) - 20
100
1000
Frequency (Hz)
10000 20k
duc Figure 10: Crosstalk between inputs vs
ro frequency
te P 0
ole -10 RL ≥ 4Ω
Gain setting = Vcc
s-20 Av = 10
b In1 = Grounded
-30 Cb = 1µF
O Bw < 125kHz
Vcc=5V, Vin2=1.4Vrms
Vcc=2.8V, Vin2=0.7Vrms
Figure 12: Signal to noise ratio vs power
supply with a weighted filter
100
90
80
RL=16Ω
RL=4Ω
RL=8Ω
70
60
2.8 3.0
3.5
4.0
Vcc (V)
Av = 10
Cb = Cin = 1µF
THD+N < 1%
Tamb = 25°C
4.5
5.0
Figure 13: Signal to noise ratio vs power
supply with unweighted filter (20Hz
to 20kHz)
100
90
RL=16Ω
80
RL=8Ω
RL=4Ω
-40 Tamb = 25°C
-50
70
-60
-70
-80
20
100
1000
Frequency (Hz)
10000 20k
60
50
2.8 3.0
3.5
4.0
Vcc (V)
Av = 2
Cb = Cin = 1µF
THD+N < 0.5%
Tamb = 25°C
4.5
5.0
7/19
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