TS4994 datasheet(19/35 Pages) STMICROELECTRONICS

tên linh kiện	TS4994

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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19 / 35 page

TS4994

Electrical characteristics

19/35

Figure 63.

THD+N vs. frequency

Figure 64.

THD+N vs. frequency

100

1000

10000

0.01

0.1

Vcc=2.6V, Po=225mW

Vcc=5V, Po=850mW

RL = 8

Av = 7.5

Cb = 1

μF

Bw < 125kHz

Tamb = 25

°C

20k

Frequency (Hz)

100

1000

10000

0.01

0.1

Vcc=2.6V, Po=225mW

Vcc=5V, Po=850mW

RL = 8

Av = 7.5

Cb = 0

Bw < 125kHz

Tamb = 25

°C

20k

Frequency (Hz)

Figure 65.

THD+N vs. frequency

Figure 66.

THD+N vs. frequency

100

1000

10000

1E-3

0.01

0.1

Vcc=2.6V, Po=155mW

Vcc=5V, Po=600mW

RL = 16

Av = 1

Cb = 1

μF

Bw < 125kHz

Tamb = 25

°C

20k

Frequency (Hz)

100

1000

10000

1E-3

0.01

0.1

Vcc=2.6V, Po=155mW

Vcc=5V, Po=600mW

RL = 16

Av = 7.5

Cb = 1

μF

Bw < 125kHz

Tamb = 25

°C

20k

Frequency (Hz)

Figure 67.

SNR vs. power supply voltage with

unweighted filter

Figure 68.

SNR vs. power supply voltage with

A-weighted filter

2.5

3.0

3.5

4.0

4.5

5.0

100

105

110

Av = 2.5

Cb = 1

μF

THD+N < 0.7%

Tamb = 25

°C

RL=16

RL=8

Power Supply Voltage (V)

2.5

3.0

3.5

4.0

4.5

5.0

100

105

110

Av = 2.5

Cb = 1

μF

THD+N < 0.7%

Tamb = 25

°C

RL=16

RL=8

Power Supply Voltage (V)

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