TS4974_07 Datasheet, PDF (9/25 Pages) STMicroelectronics – 1W differential audio power amplifier with up/down digital volume control pins

TS4974
Figure 2. THD+N vs. output power
10
RL = 8Ω
G = 0dB
F = 1kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Electrical characteristics
Figure 3. THD+N vs. output power
10
RL = 8Ω
G = 12dB
F = 1kHz
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 4. THD+N vs. output power
10
RL = 16Ω
G = 0dB
F = 1kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Figure 5. THD+N vs. output power
10
RL = 16Ω
G = 12dB
F = 1kHz
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 6. THD+N vs. output power
10
RL = 8Ω
G = 0dB
F = 20kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Figure 7. THD+N vs. output power
10
RL = 8Ω
G = 12dB
F = 20kHz
Cb = 1μF
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
0.1
1E-3
0.01
0.1
Output power (W)
0.1
1
1E-3
0.01
0.1
Output power (W)
1
9/25