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TS4999 Datenblatt(Datasheet) 5 Page - STMicroelectronics

Teile-Nr. TS4999
Beschreibung  Filter-free stereo 2.8 W class D audio power amplifier with selectable 3D sound effects
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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TS4999
Application information
5/36
2
Application information
Figure 1.
Typical application schematic
Note:
See Section 4.9: Output filter considerations on page 29.
TS4999
Left speaker
Right speaker
Cin
Cin
Left IN+
Left IN-
Differential
Left Input
Cin
Cin
Right IN+
Right IN-
Differential
Right Input
Standby C ontrol
VCC
CsL
1uF
Cs
0.1uF
Gain Select
Control
CsR
1uF
3D Effect
Control
VCC
VCC
Gain
Select
Oscillator
PWM
PWM
Gain
Select
Standby
Control
Protection
Circuit
Bridge
H
Bridge
H
Lin+
Lin-
G0
G1
Rin+
Rin-
STBYL
STBYR
Lout+
A5
A7
E5
E7
E3
A3
D2
E1
C5
C3
B2
A1
Lout-
Rout+
Rout-
RPVCC
PGN D
AGND
AVC C
LPVCC
Table 4.
External component description
Components
Functional description
CS, CSL, CSR
Supply capacitor that provides power supply filtering.
Cin
Input coupling capacitors that block the DC voltage at the amplifier input terminal.
The capacitors also form a high pass filter with Zin
(Fcl = 1 / (2 x π x Zin x Cin)). Note that the value of Zin changes with each gain setting.
These coupling capacitors are mandatory.




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