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TS4972 数据表(PDF) 24 Page - STMicroelectronics

部件名 TS4972
功能描述  1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH
PDF  28 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4972 数据表(HTML) 24 Page - STMicroelectronics

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Application n°3 : 50Hz to 10kHz bandwidth and
10dB gain BTL power amplifier.
Components :
Application n°4 : Differential inputs BTL power
amplifier.
In this configuration, we need to place these
components : R1, R4, R5, R6, R7, C4, C5, C12.
We have also : R4 = R5, R1 = R6, C4 = C5.
The differential gain of the amplifier is:
Note : Due to the VICM range (see Operating
Condition), GVDIFF must have a minimum value
shown in figure 84.
Fig. 84 : Minimum Differential Gain vs Power Supply
Voltage
For Vcc=5V, a 20Hz to 20kHz bandwidth and 20dB
gain BTL power amplifier you could follow the bill
of material below.
Components :
Designator
Part Type
R1
33k / 0.125W
R2
Short Circuit
R4
22k / 0.125W
R6
Short Cicuit
R7
100k / 0.125W
R8
Short Cicuit
C2
470pF
C5
150nF
C6
100µF
C7
100nF
C9
Short Circuit
C10
Short Circuit
C12
1µF
S1, S2, S6, S7
2mm insulated Plug
10.16mm pitch
S8
3 pts connector 2.54mm
pitch
P1
SMB Plug
GVDIFF = 2
R1
R4
--------
Designator
Part Type
R1
110k / 0.125W
R4
22k / 0.125W
R5
22k / 0.125W
R6
110k / 0.125W
R7
100k / 0.125W
R8
Short circuit
C4
470nF
C5
470nF
C6
100µF
C7
100nF
C9
Short Circuit
C10
Short Circuit
C12
1µF
S1, S2, S6, S7
2mm insulated Plug
10.16mm pitch
S8
3 pts connector 2.54mm
pitch
P1, P2
SMB Plug
2.5
3.0
3.5
4.0
4.5
5.0
5.5
10
15
20
25
30
35
40
Power Supply Voltage (V)



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