TS4975(2005_07) 查看數據表（PDF） - STMicroelectronics

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TS4975
(Rev.:2005_07)

Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus

STMicroelectronics 

Electrical Characteristics

Figure 14. THD+N versus frequency

TS4975

Figure 15. THD+N versus frequency

10

RL = 8Ω

Output mode 1 - 8

Single Ended

G = +2dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=20mW

0.1

Vcc=3.3V

P=40mW

Vcc=5V

P=110mW

10

RL = 8Ω

Output mode 1 - 8

Single Ended

G = +18dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=20mW

0.1

Vcc=3.3V

P=40mW

Vcc=5V

P=110mW

0.01

100

1000

Frequency (Hz)

10000

0.01

100

1000

Frequency (Hz)

10000

Figure 16. THD+N versus frequency

Figure 17. THD+N versus frequency

10

RL = 16Ω

Output mode 1 - 8

Single Ended

G = +2dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=15mW

0.1

Vcc=3.3V

P=30mW

Vcc=5V

P=80mW

10

RL = 16Ω

Output mode 1 - 8

Single Ended

G = +18dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=15mW

0.1

Vcc=3.3V

P=30mW

Vcc=5V

P=80mW

0.01

100

1000

Frequency (Hz)

10000

0.01

100

1000

Frequency (Hz)

10000

Figure 18. THD+N versus frequency

Figure 19. THD+N versus frequency

10

RL = 32Ω

Output mode 1 - 8

Single Ended

G = +2dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=10mW

0.1

Vcc=3.3V

P=20mW

Vcc=5V

P=50mW

10

RL = 32Ω

Output mode 1 - 8

Single Ended

G = +18dB

1 BW < 125kHz

Tamb = 25°C

Vcc=2.5V

P=10mW

0.1

Vcc=3.3V

P=20mW

Vcc=5V

P=50mW

0.01

100

1000

Frequency (Hz)

10000

0.01

100

1000

Frequency (Hz)

10000

10/33

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