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TS4990 データシート(PDF) 16 Page - STMicroelectronics

部品番号 TS4990
部品情報  1.2 W audio power amplifier with active low standby mode
PDF  32 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4990 データシート(HTML) 16 Page - STMicroelectronics

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Electrical characteristics
TS4990
16/32
Figure 50.
THD + N vs. output power
Figure 51.
THD + N vs. frequency
1E-3
0.01
0.1
1
0.01
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Vcc=2.2V
RL = 16
Ω
F = 20kHz
Av = 2
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
Output Power (W)
100
1000
10000
0.01
0.1
Vcc=2.2V, Po=130mW
Vcc=5V, Po=1W
RL=8
Ω
Av=2
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
Frequency (Hz)
Figure 52.
SNR vs. power supply with
unweighted filter (20Hz to 20kHz)
Figure 53.
THD + N vs. frequency
2.5
3.0
3.5
4.0
4.5
5.0
80
85
90
95
100
105
110
Av = 2
Cb = 1
μF
THD+N < 0.7%
Tamb = 25
°C
RL=16
Ω
RL=4
Ω
RL=8
Ω
Power Supply Voltage (V)
100
1000
10000
0.1
1
Vcc=2.2V, Po=150mW
Vcc=5V, Po=1.3W
RL=4
Ω
Av=2
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
Frequency (Hz)
Figure 54.
THD + N vs. frequency
Figure 55.
SNR vs. power supply with
unweighted filter (20Hz to 20kHz)
100
1000
10000
0.01
0.1
Vcc=2.2V, Po=100mW
Vcc=5V, Po=0.55W
RL=16
Ω
Av=2
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
Frequency (Hz)
2.5
3.0
3.5
4.0
4.5
5.0
70
75
80
85
90
95
Av = 10
Cb = 1
μF
THD+N < 0.7%
Tamb = 25
°C
RL=16
Ω
RL=4
Ω
RL=8
Ω
Power Supply Voltage (V)



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