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TS488 数据表(PDF) 11 Page - STMicroelectronics

部件名 TS488
功能描述  Pop-free 120 mW stereo headphone amplifier
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS488 数据表(HTML) 11 Page - STMicroelectronics

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Figure 22. Power supply rejection ratio vs. frequency
100
1k
10k
-80
-70
-60
-50
-40
-30
-20
-10
0
Vcc=5V
Vcc=3.3V
20k
20
Vcc=2.5V
Inputs grounded, Av=-1,
RL=16Ω, Cb=1 μF, T
AMB=25°C
Frequency (Hz)
Figure 23. Power supply rejection ratio vs. frequency
VCC= 3.3 V
100
1k
10k
-80
-70
-60
-50
-40
-30
-20
-10
0
Av=-4
Av=-1
20k
20
Av=-2
Inputs grounded, Vcc=3.3V,
RL=16Ω, Cb=1 μF, T
AMB=25°C
Frequency (Hz)
Figure 24. Power supply rejection ratio vs. frequency
VCC= 3.3 V, AV= -1
100
1k
10k
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=1μF
Cb=100nF
Cb=470nF
20k
20
Cb=220nF
Inputs grounded, Av=-1,
RL=16Ω, Vcc=3.3V, T
AMB=25°C
Frequency (Hz)
Figure 25. Total harmonic distortion plus noise vs. output
power RL=16 Ω
1
10
100
1E-3
0.01
0.1
1
10
V
CC=3.3V
V
CC=5V
V
CC=2.5V
F=1kHz, R
L=16Ω
A
V=-1, T
AMB=25°C
BW=20Hz-120kHz
Output Power (mW)
200
Figure 26. Total harmonic distortion plus noise vs. output
power RL=16 Ω, F=20 kHz
1
10
100
0.01
0.1
1
10
V
CC=3.3V
V
CC=5V
V
CC=2.5V
F=20kHz, R
L=16Ω
A
V=-1, T
AMB=25°C
BW=20Hz-120kHz
Output Power (mW)
200
Figure 27. Total harmonic distortion plus noise vs. output
power RL=32 Ω, F=1 kHz
1
10
100
1E-3
0.01
0.1
1
10
V
CC=3.3V
V
CC=5V
V
CC=2.5V
F=1kHz, R
L=32Ω
A
V=-1, T
AMB=25°C
BW=20Hz-120kHz
Output Power (mW)
200
TS488
Electrical characteristics curves
DS4579 - Rev 8
page 11/32



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