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TDA7261 Datasheet(PDF) 4 Page - STMicroelectronics

No. de pieza TDA7261
Descripción Electrónicos  25W MONO AMPLIFIER WITH MUTE/ST-BY
PDF  9 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7261 Datasheet(HTML) 4 Page - STMicroelectronics

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COMPONENTS
RECOMMENDED
VALUE
PURPOSE
LARGER THAN
RECOMMENDED VALUE
SMALLER THAN
RECOMMENDED VALUE
R1
10K
Ω
Mute Circuit
Increase of Dz
Biasing Current
R2
15K
Ω
Mute Circuit
Vpin # 4 Shifted Downward
Vpin # 4 Shifted Upward
R3
18K
Ω
Mute Circuit
Vpin # 4 Shifted Upward
Vpin # 4 Shifted Downward
R4
15K
Ω
Mute Circuit
Vpin # 4 Shifted Upward
Vpin # 4 Shifted Downward
R5
4.7
Ω
Frequency Stability
Danger of Oscillations
Danger of Oscillations
C1
1
µF
Input DC
Decoupling
Higher Low Frequency
Cutoff
C2
1
µF
St-By/Mute Time
Constant
Larger On/Off Time
Smaller On/Of Time
C3, C5
1000
µF
Supply Voltage
Bypass
Danger of Oscillations
C4, C6
0.1
µF
Supply Voltage
Bypass
Danger of Oscillations
C7
0.1
µF
Frequency Stability
Dz
5.1V
Mute Circuit
Q1
BC107
Mute Circuit
APPLICATIONS SUGGESTION
(Demo Board Schematic)
The recommended values of the external compo-
nents are those shown on the demo board sche-
matic. Different values can be used: the following
table can help the designer.
MUTE, STAND-BY TRUTH TABLE
SW1
SW2
A
A
STAND-BY
A
B
STAND-BY
B
B
MUTE
B
A
PLAY
TDA7261
4/9



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