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TS4972 数据表(PDF) 7 Page - STMicroelectronics

部件名 TS4972
功能描述  1.2W Audio Power Amplifier with Standby Mode Active High
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4972 数据表(HTML) 7 Page - STMicroelectronics

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Electrical Characteristics
TS4972
7/30
Figure 7: Open Loop Frequency Response
Figure 8: Open Loop Frequency Response
Figure 9: Open Loop Frequency Response
0.3
1
10
100
1000
10000
-40
-20
0
20
40
60
80
100
-220
-200
-180
-160
-140
-120
-100
-80
Frequency (kHz)
Vcc = 5V
CL = 560pF
Tamb = 25
°C
Gain
Phase
0.3
1
10
100
1000
10000
-40
-20
0
20
40
60
80
100
-240
-220
-200
-180
-160
-140
-120
-100
-80
Frequency (kHz)
Vcc = 2.6V
CL = 560pF
Tamb = 25
°C
Gain
Phase
0.3
1
10
100
1000
10000
-40
-20
0
20
40
60
80
100
-240
-220
-200
-180
-160
-140
-120
-100
-80
Frequency (kHz)
Vcc = 3.3V
CL = 560pF
Tamb = 25
°C
Gain
Phase
Figure 10: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 11: Power Supply Rejection Ratio
(PSRR) vs Bypass Capacitor
Figure 12: Power Supply Rejection Ratio
(PSRR) vs Feedback Resistor
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
Vcc = 5V, 3.3V & 2.6V
Cb = 1
µF & 0.1µF
Vripple = 200mVrms
Rfeed = 22
Ω
Input = floating
RL = 8
Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Cb=100
µF
Cb=10
µF
Cb=47
µF
Cb=1
µF
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k
Rin = 22k, Cin = 1
µF
Rg = 100
Ω, RL = 8Ω
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Rfeed=10k
Ω
Rfeed=22k
Ω
Rfeed=47k
Ω
Rfeed=110k
Ω
Vcc = 5, 3.3 & 2.6V
Cb = 1
µF & 0.1µF
Vripple = 200mVrms
Input = floating
RL = 8
Ω
Tamb = 25
°C
Frequency (Hz)



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