TS4994IST datasheet(10/35 Pages) STMICROELECTRONICS

tên linh kiện	TS4994IST

Giải thích chi tiết về linh kiện	1W differential input/output audio power amplifier with selectable standby

PDF	35 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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10 / 35 page

Electrical characteristics

TS4994

10/35

Figure 9.

Power dissipation vs. output power

Figure 10.

Power dissipation vs. output power

0.0

0.1

0.2

0.3

0.4

0.0

0.1

0.2

0.3

RL=8

Vcc=3.3V

F=1kHz

THD+N<1%

RL=16

Output Power (W)

0.0

0.1

0.2

0.3

0.00

0.05

0.10

0.15

0.20

RL=8

Vcc=2.6V

F=1kHz

THD+N<1%

RL=16

Output Power (W)

Figure 11.

Output power vs. power supply

voltage

Figure 12.

Output power vs. power supply

voltage

2.5

3.0

3.5

4.0

4.5

5.0

0.0

0.2

0.4

0.6

0.8

1.0

Cb = 1

μF

F = 1kHz

BW < 125kHz

Tamb = 25

°C

Vcc (V)

2.5

3.0

3.5

4.0

4.5

5.0

0.00

0.25

0.50

0.75

1.00

1.25

1.50

Cb = 1

μF

F = 1kHz

BW < 125kHz

Tamb = 25

°C

Vcc (V)

Figure 13.

Output power vs. load resistance

Figure 14.

Power derating curves

812

0.0

0.2

0.4

0.6

0.8

1.0

Vcc=4.5V

Vcc=5V

Vcc=2.5V

Vcc=3V

Vcc=4V

Vcc=3.5V

THD+N=1%

Cb = 1 F

F = 1kHz

BW < 125kHz

Tamb = 25

°C

Load Resistance

100

125

0.0

0.5

1.0

1.5

AMR Value

with 4 layers PCB

Ambiant Temperature ( C)

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