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TS4974 Scheda tecnica(PDF) 12 Page - STMicroelectronics

Il numero della parte TS4974
Spiegazioni elettronici  1W differential audio power amplifier with up/down digital volume control pins
PDF  25 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4974 Scheda tecnica(HTML) 12 Page - STMicroelectronics

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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
0
G=12dB
Cb=1, 0.47, 0.1
μF
G=0dB
Cb=1, 0.47, 0.1
μF
Vcc = 5V
RL
≥ 8Ω
Tamb = 25°C
Frequency (Hz)
100
1000
10000
-80
-70
-60
-50
-40
-30
-20
-10
0
G=12dB
Cb=1, 0.47, 0.1
μF
G=0dB
Cb=1, 0.47, 0.1
μF
Vcc = 3.3V
RL
≥ 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
0
G=12dB
Cb=1, 0.47, 0.1
μF
G=0dB
Cb=1, 0.47, 0.1
μF
Vcc = 2.6V
RL
≥ 8Ω
Tamb = 25°C
Frequency (Hz)
2.5
3.0
3.5
4.0
4.5
5.0
5.5
90
92
94
96
98
100
102
104
106
108
110
RL=16
Ω
RL=8
Ω
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
90
92
94
96
98
100
102
104
106
108
110
RL=16
Ω
RL=8
Ω
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
90
92
94
96
98
100
102
104
106
108
110
RL=16
Ω
RL=8
Ω
Unweighted filter (20Hz to 20kHz)
F = 1kHz
G = 0dB
THD + N < 0.5%
Tamb = 25
°C
Vcc (V)



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