TS4961TIQT STMicroelectronics, TS4961TIQT Datasheet - Page 43

• Manufacturer Part Number: TS4961TIQT
• Description: IC AMP AUDIO PWR 1.95W D 16QFN
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TS4961TIQT

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1.95W x 1 @ 4 Ohm
• Voltage - Supply: 2.4 V ~ 4.3 V
• Features: Depop, Differential Inputs, Standby
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• For Use With: 497-8932 - BOARD EVAL FOR TS4961T
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8388-2

TS4961T
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. 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
this can cause damage to the TS4961T audio amplifier and to the external audio amplifier
that provides the speaker-out signal.
Speaker
Source
Source
2.4 to 4.3V
2.4 to 4.3V
Line
Out
Out
Figure
Figure
C
C
IN
IN
82, all pins should not be switched at the same time because
81.
R
R
/STDBY
IN
IN
SL1
SL2
D1
D2
IN+
IN-
16
15
11
12
13
4
3
VCCS
VCCA
C
Analog Switch
2
SA
Amplifier
Class D
6
C
SS
7
7
GNDA
GNDS
Application component information
5
8
1
9
TS4961T
OUT+
OUT-
T1
T2
4-8 ohms
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