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TS4972 Fiches technique(PDF) 8 Page - STMicroelectronics

No de pièce TS4972
Description  1.2W Audio Power Amplifier with Standby Mode Active High
Download  30 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4972 Fiches technique(HTML) 8 Page - STMicroelectronics

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TS4972
Electrical Characteristics
8/30
Figure 13: Power Supply Rejection Ratio
(PSRR) vs Feedback Capacitor
Figure 14: Power Supply Rejection Ratio
(PSRR) vs Input Capacitor
Figure 15: Pout @ THD + N = 1% vs Supply
Voltage vs RL
10
100
1000
10000
100000
-80
-70
-60
-50
-40
-30
-20
-10
Cfeed=680pF
Cfeed=330pF
Cfeed=150pF
Cfeed=0
Vcc = 5, 3.3 & 2.6V
Cb = 1
µF & 0.1µF
Rfeed = 22k
Vripple = 200mVrms
Input = floating
RL = 8
Tamb = 25
°C
Frequency (Hz)
10
100
1000
10000
100000
-60
-50
-40
-30
-20
-10
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k
, Rin = 22k
Cb = 1
µF
Rg = 100
, RL = 8
Tamb = 25
°C
Cin=22nF
Cin=100nF
Cin=220nF
Cin=330nF
Cin=1
µF
Frequency (Hz)
2.5
3.0
3.5
4.0
4.5
5.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Gv = 2 & 10
Cb = 1
µF
F = 1kHz
BW < 125kHz
Tamb = 25
°C
32
16
4
6
8
Power Supply (V)
Figure 16: Power Dissipation vs Pout
Figure 17: Power Dissipation vs Pout
Figure 18: Pout @ THD + N = 10% vs Supply
Voltage vs RL
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
RL=16
RL=8
Vcc=5V
F=1kHz
THD+N<1%
RL=4
Output Power (W)
0.0
0.1
0.2
0.3
0.4
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
RL=4
RL=8
Vcc=2.6V
F=1kHz
THD+N<1%
RL=16
Output Power (W)
2.5
3.0
3.5
4.0
4.5
5.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Gv = 2 & 10
Cb = 1
µF
F = 1kHz
BW < 125kHz
Tamb = 25
°C
32
16
4
6
8
Power Supply (V)


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