參數(shù)資料
型號(hào)： TS4961TIQT
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, QCC16
封裝： 3 X 3 MM, ROHS COMPLIANT, QFN-16
文件頁(yè)數(shù)： 38/49頁(yè)
文件大小： 1351K
代理商： TS4961TIQT
TS4961T
Application component information
43/49
4.10
Using the audio amplifier and switch on the same speaker
The TS4961T can be used to supply a speaker with two different sources. The typical
application is shown in Figure 81.
Figure 81.
Typical application schematics for the TS4961T
The first source is a line-out signal provided by the baseband and the second is a
speaker-out signal coming from the CODEC. Switching is done through the standby pin
(/STDBY) of the audio amplifier and through the SLn pins of the switch.
Note that, as shown in Figure 82, all pins should not be switched at the same time because
this can cause damage to the TS4961T audio amplifier and to the external audio amplifier
that provides the speaker-out signal.
/STDBY
IN+
IN-
VCCA
VCCS
SL1
SL2
D1
D2
T1
T2
GNDA
GNDS
OUT+
OUT-
7
6
12
16
15
11
4
2
7
13
9
Line
Out
Source
Analog Switch
4-8 ohms
Class D
Amplifier
8
5
C
IN
C
IN
R
IN
R
IN
2.4 to 4.3V
3
1
C
SA
C
SS
TS4961T
Speaker
Out
Source
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