TS4872(2002) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TS4872
(Rev.:2002)
(Rev.:2002)
STMicroelectronics
TS4872 Datasheet PDF : 29 Pages
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TS4872
Then
C FEED = -2---π------R-----F--1-E----E---D----F----C----H- = 265pF
So, we could use for Cfeed a 220pF capacitor
value that gives 24kHz.
Now, we can calculate the value of Cb with the
formula τb = 50kΩxCb >> τin = (Rin+Rfeed)xCin
which permits to reduce the pop and click effects.
Then Cb >> 0.8µF.
We can choose for Cb a normalized value of 2.2µF
that gives good results in THD+N and PSRR.
In the following tables, you could find three another
examples with values required for the demoboard.
Remark : components with (*) marking are
optional.
Application n°1 : 20Hz to 20kHz bandwidth and
6dB gain BTL power amplifier.
Components :
Designator
R1
R4
R6
R7
C5
C6
C7
C9
C10
C12
S1, S2, S6, S7
S8
J1
U1
Part Type
22k / 0.125W
22k / 0.125W
Short Cicuit
330k / 0.125W
470nF
100µF
100nF
Short Circuit
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
2 pts connector 2.54mm
pitch
SMB plug
TS4872IJ
Application n°2 : 20Hz to 20kHz bandwidth and
20dB gain BTL power amplifier.
Components :
Designator
Part Type
R1
R4
R6
R7
C5
C6
C7
C9
C10
C12
S1, S2, S6, S7
S8
J1
U1
110k / 0.125W
22k / 0.125W
Short Cicuit
330k / 0.125W
470nF
100µF
100nF
Short Circuit
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
2 pts connector 2.54mm
pitch
SMB Plug
TS4872IJ
Application n°3 : 50Hz to 10kHz bandwidth and
10dB gain BTL power amplifier.
Components :
Designator
Part Type
R1
33k / 0.125W
R2
Short Circuit
R4
22k / 0.125W
R6
Short Cicuit
R7
330k / 0.125W
C2
470pF
C5
150nF
C6
100µF
C7
100nF
C9
Short Circuit
24/29
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