TS4851 datasheet(19/28 Pages) STMICROELECTRONICS

tên linh kiện	TS4851

Giải thích chi tiết về linh kiện	MONO 1 W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS WITH DIGITAL VOLUME CONTROL

PDF	28 Pages

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19 / 28 page

Electrical Characteristics

TS4851

19/28

Figure 55: Power dissipation vs. output power

(speaker output)

Figure 56: Power dissipation vs. output power

(headphone output, one channel)

Figure 57: Power dissipation vs. output power

(headphone output one channel)

Figure 58: Power derating curves

Figure 59: -3 dB lower cut off frequency vs. gain

setting (output modes 3, 4, 5, 6, 7)

Table 11. Output noise (all inputs grounded)

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)

1020

3040

5060

100

120

RL=32

Ω

Vcc=3V

F=1kHz

THD+N<1%

RL=16

Ω

Output Power (mW)

Outp

Mode

Unweighted

Filter from 3V

to 5V

Weighted Filter

(A) from 3V to

123

µVrms

220

µVrms

370

µVrms

453

µVrms

579

µVrms

660

µVrms

-20

100

Cin=1

µF

Cin=470nF

Cin=220nF

Cin=100nF

Rin & Lin Inputs

Input Impedance is Nominal

Tamb=25

°C

-34.5

Gain Setting (dB)

100

125

150

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

No Heat sink

Heat sink surface = 125mm

Ambiant Temperature ( C)

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