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STA540SA Fiches technique(PDF) 27 Page - STMicroelectronics

No de pièce STA540SA
Description  4 x 10-watt dual/quad power amplifier
PDF  30 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA540SA Fiches technique(HTML) 27 Page - STMicroelectronics

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STA540SA
Demonstration boards and applications suggestions
Doc ID 16066 Rev 2
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9.3
Mute function
If the mute function is required, it can be accessed on SVR (pin 8) as shown in Figure 39.
Figure 39.
Components for layout
VS = 10 to 16 V, VSVR: mute off ≥ 0.6 to 0.8, mute on ≥ 0.2 V
Using a different value for R1 than the suggested 3.3 k
Ω, results in two different situations:
R1 > 3.3 k
Ω:
–
Pop noise improved
–
Lower mute attenuation
R1 < 3.3 k
Ω:
–
Pop noise degradation
–
Higher mute attenuation
0.22
µF
1
DIAGNOSTICS
4
9
D05AU1617A
10
µF
10K
ST-BY
IN L
0.47
µF
5
IN BRIDGE
16
470
µF
8
17
1000
µF
100nF
3
VS
2
18
19
OUT L
10
11
12
OUT
BRIDGE
15
0.22
µF
IN R
OUT R
2200
µF
2200
µF
R1 3.3K
R2 10K
MUTE
5V
0
PLAY
STBY
Obsolete
Product(s)
- Obsolete
Product(s)



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