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TS4997 Datasheet(PDF) 29 Page - STMicroelectronics

Part # TS4997
Description  2 x 1W differential input stereo audio amplifier with programmable 3D effects
PDF  34 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4997 Datasheet(HTML) 29 Page - STMicroelectronics

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TS4997
Application information
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Figure 68.
PSRR measurement
Principles of operation
●
The DC voltage supply (VCC) is fixed
●
The AC sinusoidal ripple voltage (Vripple) is fixed
●
No bypass capacitor CS is used
The PSRR value for each frequency is calculated as:
RMS is an rms selective measurement.
Cin1
4.7uF
Cb
1uF
Rin1
Rin2
1
2
4
3
14
12
11
9
10
BIAS
STBY
3D
EFFECT
LEFT
RIGHT
LI N-
RIN-
LI N+
RIN+
Bypa ss
GND
GND
LOUT-
LOUT+
ROUT-
ROUT+
-
+
+
-
Vcc
TS4997 - QFN16
Rin3
Rin4
Cin2
4.7uF
Cin3
4.7uF
Cin4
4.7uF
RL
8Ohms
RL
8Ohms
Vcc
Vripple
PSRR
20
Log
RMS
Output
()
RMS
Vripple
()
----------------------------------
×
dB
()
=



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