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TS4909 Arkusz danych(PDF) 5 Page - STMicroelectronics

Numer części TS4909
Szczegółowy opis  Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs
PDF  35 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4909 Arkusz danych(HTML) 5 Page - STMicroelectronics

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TS4909
Typical application schematics
Doc ID 11972 Rev 9
5/35
1
Typical application schematics
Figure 1.
Typical applications for the TS4909
Table 1.
Application component information
Component
Functional description
R
in1,2
Inverting input resistor that sets the closed loop gain in conjunction with R
feed
. This
resistor also forms a high pass filter with C
in
(f
c
= 1 / (2 x Pi x R
in
x C
in
)).
C
in1,2
Input coupling capacitor that blocks the DC voltage at the amplifier’s input terminal.
R
feed1,2
Feedback resistor that sets the closed loop gain in conjunction with R
in
.
A
V
= closed loop gain = -R
feed
/R
in
.
C
b
Half supply bypass capacitor
C
s
Supply bypass capacitor that provides power supply filtering.
Vin1
Vin2
Rin1
Rin2
Rfeed1
Rfeed2
Cin1
330nF
Cin2
BIAS
Gnd
Vcc
Cs
1μF
20k
20k
20k
330nF
Vout1
Vout2
Vout3
Standby
20k
Phantom ground configuration
Single-ended configuration
Cout1
Cout2
Cb
1μF
Vin1
Vin2
Rin1
Rin2
Rfeed1
Rfeed2
Cin1
330nF
Cin2
BIAS
Gnd
Vcc
Cs
1μF
20k
20k
20k
330nF
Vout1
Vout2
Vout3
Standby
20k
Cb
1μF
SE/
PHG
SE/
PHG



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