TS4855 datasheet(18/27 Pages) STMICROELECTRONICS

18 / 27 page

TS4855

Electrical Characteristics

18/27

Figure 49: HDout SNR vs. power supply voltage,

unweighted filter, BW = 20 Hz to 20 kHz)

Figure 50: HDout SNR vs. power supply voltage,

weighted filter A, BW = 20 Hz to 20 kHz)

Figure 51: Current consumption vs. power

supply voltage

Figure 52: Power dissipation vs. output

power: speaker output

Figure 53: Power dissipation vs. output

power: speaker output

Figure 54: Power dissipation vs. output power.

headphone output one channel

123

4567

100

Vcc = 3V

Vcc = 5V

RL = 32

Ω

G=+6dB and +12dB

Unweighted filter (20Hz to 20kHz)

THD + N < 0.7%

Tamb = 25

°C

Output Mode

123

4567

100

Vcc = 3V

Vcc = 5V

RL = 32

Ω

G=+6dB and +12dB

Weighted filter A (20Hz to 20kHz)

THD + N < 0.7%

Tamb = 25

°C

Output Mode

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Output mode 2 to 7

RL=8

Ω and 2x32Ω

Output mode 2 to 7

no loads

Output mode 1

RL=8

Ω

Tamb = 25

°C

Output mode 1

no load

Vcc (V)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

RL=16

Ω

RL=8

Ω

Vcc=5V

F=1kHz

THD+N<1%

RL=4

Ω

Output Power (W)

0.0

0.1

0.2

0.3

0.4

0.5

0.0

0.1

0.2

0.3

0.4

0.5

RL=4

Ω

RL=8

Ω

Vcc=3V

F=1kHz

THD+N<1%

RL=16

Ω

Output Power (W)

0.00

0.05

0.10

0.15

0.20

0.25

0.0

0.1

0.2

0.3

0.4

RL=16

Ω

RL=32

Ω

Vcc=5V

F=1kHz

THD+N<1%

Output Power (W)

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