TS4984 Datasheet, PDF (8/29 Pages) STMicroelectronics – 2 x 1W Stereo audio power amplifier with active low standby mode

TS4984
Electrical characteristics
Figure 8: Power supply rejection ratio (PSRR)
vs. frequency
0
Vripple = 200mVpp
-10 _{Av = 2}
Input = Grounded
-20 _{Cb = Cin = 1µF}
RL >= 4Ω
-30 _{Tamb = 25°C}
-40
Vcc :
2.2V
2.6V
3.3V
5V
-50
-60
-70
100
1000
10000
Frequency (Hz)
100000
Figure 11: Power supply rejection ratio (PSRR)
vs. frequency
0
Vripple = 200mVpp
-10
Av = 2
Input = Grounded
-20
Cb = 0.1µF, Cin = 1µF
RL >= 4Ω
Tamb = 25°C
-30
-40
Vcc = 5, 3.3, 2.5 & 2.2V
-50
-60
100
1000
10000
Frequency (Hz)
100000
Figure 9: Power supply rejection ratio (PSRR)
vs. frequency
Figure 12: Power supply rejection ratio
(PSRR) vs. frequency
0
Vripple = 200mVpp
-10 Av = 5
Input = Grounded
-20 ^{Cb = Cin = 1µF}
RL >= 4Ω
Tamb = 25°C
-30
Vcc :
2.2V
2.6V
3.3V
5V
-40
-50
-60
100
1000
10000
Frequency (Hz)
100000
0
-10 ^{Vripple = 200mVpp}
Rfeed = 22kΩ
-20 ^{Input = Floating}
Cb = 1µF
-30 RL >= 4Ω
Tamb = 25°C
-40
Vcc = 2.2, 2.6, 3.3, 5V
-50
-60
-70
-80
100
1000
10000
Frequency (Hz)
100000
Figure 10: Power supply rejection ratio
(PSRR) vs. frequency
0
Vripple = 200mVpp
-10 ^{Av = 10}
Input = Grounded
Cb = Cin = 1µF
-20 RL >= 4Ω
Tamb = 25°C
-30
Vcc :
2.2V
2.6V
3.3V
5V
-40
-50
100
1000
10000
Frequency (Hz)
100000
Figure 13: Power supply rejection ratio
(PSRR) vs. frequency
0
-10 ^{Vripple = 200mVpp}
Rfeed = 22kΩ
-20 ^{Input = Floating}
Cb = 0.1µF
-30 RL >= 4Ω
Tamb = 25°C
-40
Vcc = 2.2, 2.6, 3.3, 5V
-50
-60
-70
-80
100
1000
10000
Frequency (Hz)
100000
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