TS4984 Datasheet, PDF (12/29 Pages) STMicroelectronics – 2 x 1W Stereo audio power amplifier with active low standby mode

TS4984
Electrical characteristics
Figure 32: Power dissipation vs. output power
Figure 35: Clipping voltage vs. power supply
voltage and load resistor
1.2
Vcc=3.3V
F=1kHz
1.0 _THD+N<1%
0.8
0.6
RL=4Ω
0.4
RL=8Ω
0.2
RL=16Ω
0.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Output Power (W)
0.9
Tamb = 25 C
0.8
0.7
RL = 4Ω
0.6
0.5
0.4
RL = 8Ω
0.3
0.2
0.1
RL = 16Ω
0.0
2.5
3.0
3.5
4.0
4.5
5.0
Vcc (V)
Figure 33: Power dissipation vs. output power
Figure 36: Current consumption vs. power
supply voltage
0.7
Vcc=2.6V
0.6 ^F=1kHz
THD+N<1%
0.5
0.4
RL=4Ω
0.3
RL=8Ω
0.2
0.1
RL=16Ω
0.0
0.00 0.04 0.08 0.12 0.16 0.20 0.24 0.28
Output Power (W)
No Loads
Tamb=25°C
Figure 34: Clipping voltage vs. power supply
voltage and load resistor
1.0
Tamb = 25 C
0.9
0.8
RL = 4Ω
0.7
0.6
0.5
RL = 8Ω
0.4
0.3
RL = 16Ω
0.2
2.5
3.0
3.5
4.0
4.5
5.0
Vcc (V)
Figure 37: Current consumption vs. standby
voltage at Vcc=5V
Vcc = 5V
No Loads
Tamb=25°C
12/29