TS4974_07 Datasheet, PDF (10/25 Pages) STMicroelectronics – 1W differential audio power amplifier with up/down digital volume control pins

Electrical characteristics
Figure 8. THD+N vs. output power
10
RL = 16Ω
G = 0dB
F = 20kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
TS4974
Figure 9. THD+N vs. output power
10
RL = 16Ω
G = 12dB
F = 20kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
0.1
0.1
1E-3
0.01
0.1
1
1E-3
0.01
0.1
1
Output power (W)
Output power (W)
Figure 10. THD+N vs. frequency
10
RL = 8Ω
G = 0dB
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Pout=500mW
Figure 11. THD+N vs. frequency
10
RL = 8Ω
G = 12dB
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Pout=500mW
Vcc=3.3V
Pout=250mW
Vcc=2.6V
Pout=150mW
0.1
100
1000
10000
Frequency (dB)
Vcc=3.3V
Pout=250mW
Vcc=2.6V
Pout=150mW
0.1
100
1000
10000
Frequency (dB)
Figure 12. THD+N vs. frequency
Figure 13. THD+N vs. frequency
10
RL = 16Ω
G = 0dB
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=2.6V
Pout=90mW
Vcc=3.3V
Pout=150mW
Vcc=5V
Pout=300mW
10
RL = 16Ω
G = 12dB
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=2.6V
Pout=90mW
Vcc=3.3V
Pout=150mW
Vcc=5V
Pout=300mW
0.1
100
1000
0.1
10000
100
1000
10000
Frequency (dB)
Frequency (dB)
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