TS419_V01 datasheet(17/42 Pages) STMICROELECTRONICS

17 / 42 page

Figure 34. Output voltage swing for one Amp. vs. power supply voltage

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

RL=8

Ω

RL=32

Ω

RL=16

Ω

Tamb=25°C

Amps. in BTL

Power Supply Voltage (V)

Figure 35. THD + N vs. output power RL = 8 Ω

100

1E-3

0.01

0.1

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 8

Ω

F = 20Hz

Av = 2

Cb = 1µF

BW < 22kHz

Tamb = 25°C

Output Power (mW)

Figure 36. THD + N vs. output power RL = 16 Ω

100

1E-3

0.01

0.1

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20Hz

Av = 2

Cb = 1µF

BW < 22kHz

Tamb = 25°C

Output Power (mW)

Figure 37. THD + N vs. output power RL = 32 Ω

100

1E-3

0.01

0.1

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 20Hz

Av = 2

Cb = 1

µF

BW < 22kHz

Tamb = 25°C

Output Power (mW)

Figure 38. THD + N vs. output power RL = 8 Ω,

Av = 2

100

0.01

0.1

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 8

Ω

F = 1kHz

Av = 2

Cb = 1µF

BW < 125kHz

Tamb = 25°C

Output Power (mW)

TS419, TS421

Electrical characteristics curves

DS3048 - Rev 7

page 17/42

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