TS4984 Datasheet, PDF (9/29 Pages) STMicroelectronics – 2 x 1W Stereo audio power amplifier with active low standby mode

Electrical characteristics
Figure 14: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 5V
-10
Vripple = 200mVpp
RL = 8Ω
-20
Cb = 1µF
AV = 2
-30
Tamb = 25°C
-40
-50
-60
-70
-5 -4 -3 -2 -1 0 1 2 3 4 5
Differential DC Output Voltage (V)
Figure 15: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 5V
-10
Vripple = 200mVpp
RL = 8Ω
Cb = 1µF
-20
AV = 5
Tamb = 25°C
-30
-40
-50
-60
-5 -4 -3 -2 -1 0 1 2 3 4 5
Differential DC Output Voltage (V)
Figure 16: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 5V
Vripple = 200mVpp
-10
RL = 8Ω
Cb = 1µF
AV = 10
-20
Tamb = 25°C
-30
-40
-50
-5 -4 -3 -2 -1 0 1 2 3 4 5
Differential DC Output Voltage (V)
TS4984
Figure 17: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 3.3V
-10
Vripple = 200mVpp
RL = 8Ω
-20
Cb = 1µF
AV = 2
-30
Tamb = 25°C
-40
-50
-60
-70
-3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0
Differential DC Output Voltage (V)
Figure 18: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 3.3V
-10
Vripple = 200mVpp
RL = 8Ω
Cb = 1µF
-20
AV = 5
Tamb = 25°C
-30
-40
-50
-60
-3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0
Differential DC Output Voltage (V)
Figure 19: Power supply rejection ratio
(PSRR) vs. DC output voltage
0
Vcc = 3.3V
Vripple = 200mVpp
-10
RL = 8Ω
Cb = 1µF
AV = 10
-20
Tamb = 25°C
-30
-40
-50
-3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0
Differential DC Output Voltage (V)
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