TS4990 datasheet(11/33 Pages) STMICROELECTRONICS

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TS4990

Electrical characteristics

Figure 20. PSRR vs. DC output voltage

Vcc=2.6V

Figure 21. PSRR vs. DC output voltage

Tamb = 25 °C

-2.5 -2.0 -1.5 -1.0 -0.5

0.0

0.5

1.0

1.5

2.0

2.5

-70

-60

-50

-40

-30

-20

-10

Vcc = 2.6V

Vripple = 200mVpp

RL = 8

Cb = 1

μF

AV = 2

Tamb = 25

°C

Differential DC Output Voltage (V)

-2.5 -2.0 -1.5 -1.0 -0.5

0.0

0.5

1.0

1.5

2.0

2.5

-50

-40

-30

-20

-10

Vcc = 2.6V

Vripple = 200mVpp

RL = 8

Cb = 1

μF

AV = 10

Tamb = 25

°C

Differential DC Output Voltage (V)

Figure 22. Output power vs. power supply

voltage

Figure 23. PSRR vs. DC output voltage

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

THD+N=10%

RL = 4

F = 1kHz

BW < 125kHz

Tamb = 25

°C

THD+N=1%

Vcc (V)

-2.5 -2.0 -1.5 -1.0 -0.5

0.0

0.5

1.0

1.5

2.0

2.5

-60

-50

-40

-30

-20

-10

Vcc = 2.6V

Vripple = 200mVpp

RL = 8

Cb = 1

μF

AV = 5

Tamb = 25

°C

Differential DC Output Voltage (V)

Figure 24. PSRR at F = 217 Hz vs. bypass

capacitor

Figure 25. Output power vs. power supply

voltage RL =8 

0.1

-80

-70

-60

-50

-40

-30

Av=10

Vcc:

2.6V

3.3V

Av=5

Vcc:

2.6V

3.3V

Av=2

Vcc:

2.6V

3.3V

Tamb=25

°C

Bypass Capacitor Cb ( F)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

THD+N=10%

RL = 8

F = 1kHz

BW < 125kHz

Tamb = 25

°C

THD+N=1%

Vcc (V)

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