TS4961T datasheet(43/49 Pages) STMICROELECTRONICS

부품명	TS4961T

상세설명	Mono class D audio power amplifier with dedicated analog switch

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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

GNDA

GNDS

OUT+

OUT-

Line

Out

Source

Analog Switch

4-8 ohms

Class D

Amplifier

2.4 to 4.3V

TS4961T

Speaker

Out

Source

Obsolete

Product(s)

- Obsolete

Product(s)

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