TS4974IQT Ver la hoja de datos (PDF) - STMicroelectronics

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Fabricante

TS4974IQT

1W differential audio power amplifier with up/down digital volume control pins

STMicroelectronics 

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)

10/25

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