TS4984FC Datasheet, PDF (11/30 Pages) STMicroelectronics – 1.2W Stereo Audio Power Amplifier with Active Low Standby Mode

TS4984FC
Electrical Characteristics
Figure 20. Power supply rejection ratio (PSRR) Figure 21. Power supply rejection ratio (PSRR)
vs. DC output voltage
vs. DC output voltage
0
Vcc = 2.6V
-10
Vripple = 200mVpp
RL = 8Ω
-20
Cb = 1µF
AV = 2
Tamb = 25°C
-30
-40
-50
-60
-70
-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5
Differential DC Output Voltage (V)
0
Vcc = 2.6V
-10
Vripple = 200mVpp
RL = 8Ω
Cb = 1µF
-20
AV = 5
Tamb = 25°C
-30
-40
-50
-60
-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5
Differential DC Output Voltage (V)
Figure 22. Power supply rejection ratio (PSRR) Figure 23. Power supply rejection ratio (PSRR)
vs. DC output voltage
at F = 217Hz vs. bypass capacitor
0
Vcc = 2.6V
Vripple = 200mVpp
-10
RL = 8Ω
Cb = 1µF
AV = 10
-20
Tamb = 25°C
-30
-40
-50
-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5
Differential DC Output Voltage (V)
-30
-40
-50
Av=2
-60 ^Vcc:
2.6V
3.3V
-70 5V
-80
0.1
Av=10
Vcc:
2.6V
3.3V
5V
Av=5
Vcc:
2.6V
3.3V
5V
Tamb=25°C
1
Bypass Capacitor Cb ( F)
Figure 24. Output power vs. power supply
voltage
Figure 25. Output power vs. power supply
voltage
11/30