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TS4962 数据表(PDF) 35 Page - STMicroelectronics

部件名 TS4962
功能描述  2.8W filter-free mono class D audio power amplifier
PDF  46 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4962 数据表(HTML) 35 Page - STMicroelectronics

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TS4962
Application information
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4.9
Single-ended input configuration
It's possible to use the TS4962 in a single-ended input configuration. However, input
coupling capacitors are needed in this configuration. The schematics in Figure 61 show a
single-ended input typical application.
Figure 61.
Single-ended input typical application
All formulas are identical except for the gain with Rin in kΩ:
And, due to the internal resistor tolerance we have:
In the event that multiple single-ended inputs are summed, it is important that the
impedance on both TS4962 inputs (In- and In+) are equal.
Figure 62.
Typical application schematic with multiple single-ended inputs
Rin
Rin
Cs
1u
GND
GND
Vcc
SPEAKER
Cin
Cin
Ve
GND
GND
Standby
In-
Stdby
In+
Out-
Out+
Vcc
1
4
3
7
8
6
5
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
150k
+
-
A
V
gle
sin
V
e
Out
+
Out
-
–
-------------------------------
300
R
in
----------
==
273
R
in
----------
A
V
gle
sin
327
R
in
----------
≤≤
Rin1
Req
Cs
1u
GND
GND
Vcc
SPEAKER
Cin1
Ceq
Ve1
GND
GND
Standby
Rink
Cink
Vek
GND
In-
Stdby
In+
Out-
Out+
Vcc
1
4
3
7
8
6
5
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
150k
+
-



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