参数资料
型号: TS4962IQT
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 2.8 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8
封装: 3 X 3 MM, ROHS COMPLIANT, DFN-8
文件页数: 27/44页
文件大小: 586K
代理商: TS4962IQT
TS4962
Application information
Doc ID 10968 Rev 8
33/44
4.9
Single-ended input configuration
It is possible to use the TS4962 in a single-ended input configuration. However, input
coupling capacitors are needed in this configuration. Figure 61 shows a typical single-ended
input application.
Figure 61.
Single-ended input typical application
All formulas are identical except for the gain with Rin in kΩ.
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+) be equal.
Figure 62.
Typical application schematic with multiple single-ended inputs
Rin
Cs
1u
GND
Vcc
SPEAKER
Cin
Ve
GND
Standby
In-
Stdby
In+
Out-
Out+
Vcc
1
4
3
7
8
6
5
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
+
-
300k
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
Vcc
SPEAKER
Cin1
Ceq
Ve1
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
+
-
300k
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