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TS4956 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. TS4956
Description  Stereo audio amplifier system with I2C bus interface
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4956 Datasheet(HTML) 3 Page - STMicroelectronics

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TS4956
Typical application schematic
3/51
2
Typical application schematic
Figure 1.
Typical application for the TS4956 (mode 1, 2, 3, 4, 5, 6)
Table 4.
External components descriptions
Components
Functional description
Cs1, Cs2
Supply bypass capacitors which provide power supply filtering.
Cb
Bypass capacitor which provides half-supply filtering.
Cin1 to Cin4
Input capacitors which form together with input impedance Zin first-order high pass
filter to block DC voltage on inputs
Cout
Output capacitor which forms with output load RL first-order high pass filter to block
half-supply voltage on single-ended output.
R1
Resistor to keep
Cout charged for better pop performance on single-ended output.
Bias
control
Select
I2C
Mode
TS4956
LHP
MLO
PHG
RHP
LHP Amplifier
Speaker Amplifier
RHP Amplifier
PHG Amplifier
I2CVCC
BYPASS
Digital volume
SRP+
SRN-
MLO Amplifier
Stereo
Stereo
Input Left
Input Right
LIN
RIN
Stereo
Stereo
Input Left
Input Right
MIP
MIN
B4
A2
A1
A5
B6
A7
D6
B2
D2
E7
+
Cin3
330nF
+
Cin4
330nF
Cb
1µF
Cs1
1µF
1k
R1
16/32 Ohms
16/32 Ohms
16/32 Ohms
+
Cout
220µF
8 Ohms
Cs2
100nF
I2CVCC
SCL
SDA
MODE1: Gx(MIP+MIN)
MODE5: Gx(MIP+MIN)
MODE4: GxLIN
MODE4: GxRIN
Vcc
+
Cin1
330nF
+
Cin2
330nF
MODE3: Gx(MIP+MIN)
MODE3: Gx(MIP+MIN)
MODE2: Gx(LIN+RIN)
MODE6: Gx(LIN + RIN)
Diff. input +
Diff. input -
SE input left
SE input right
I2C BUS


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