TS4974 datasheet(12/25 Pages) STMICROELECTRONICS

tên linh kiện	TS4974

Giải thích chi tiết về linh kiện	1W differential audio power amplifier with up/down digital volume control pins

PDF	25 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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Electrical characteristics

TS4974

12/25

Figure 20.

CMRR vs. frequency

Figure 21.

CMRR vs. frequency

100

1000

10000

-80

-70

-60

-50

-40

-30

-20

-10

G=12dB

Cb=1, 0.47, 0.1

μF

G=0dB

Cb=1, 0.47, 0.1

μF

Vcc = 5V

≥ 8Ω

Tamb = 25°C

Frequency (Hz)

100

1000

10000

-80

-70

-60

-50

-40

-30

-20

-10

G=12dB

Cb=1, 0.47, 0.1

μF

G=0dB

Cb=1, 0.47, 0.1

μF

Vcc = 3.3V

≥ 8Ω

Tamb = 25°C

Frequency (Hz)

Figure 22.

CMRR vs. frequency

Figure 23.

SNR vs. supply voltage

100

1000

10000

-80

-70

-60

-50

-40

-30

-20

-10

G=12dB

Cb=1, 0.47, 0.1

μF

G=0dB

Cb=1, 0.47, 0.1

μF

Vcc = 2.6V

≥ 8Ω

Tamb = 25°C

Frequency (Hz)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

100

102

104

106

108

110

RL=16

RL=8

A - weighted filter

F = 1kHz

G = 0dB

THD + N < 0.5%

Tamb = 25

°C

Vcc (V)

Figure 24.

SNR vs. supply voltage

Figure 25.

SNR vs. supply voltage

2.5

3.0

3.5

4.0

4.5

5.0

5.5

100

102

104

106

108

110

RL=16

RL=8

A - weighted filter

F = 1kHz

G = +12dB

THD + N < 0.5%

Tamb = 25

°C

Vcc (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

100

102

104

106

108

110

RL=16

RL=8

Unweighted filter (20Hz to 20kHz)

F = 1kHz

G = 0dB

THD + N < 0.5%

Tamb = 25

°C

Vcc (V)

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