TS4961TIQT datasheet(2/49 Pages) STMICROELECTRONICS

Part #	TS4961TIQT

Description	Mono class D audio power amplifier with dedicated analog switch

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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2 / 49 page

Contents

TS4961T

2/49

Contents

1

Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3

2

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Audio amplifier section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Analog switch section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3

Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1

Audio amplifier section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2

Analog switch section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4

Application component information . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.1

Common mode feedback loop limitations . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.2

Low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.3

Decoupling of the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.4

Wake-up time (tWU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.5

Shutdown time (tSTBY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.6

Consumption in standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.7

Single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.8

Output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.9

Examples with summed inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.9.1

Example 1: dual differential inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.9.2

Example 2: one differential input plus one single-ended input . . . . . . . . 42

4.10

Using the audio amplifier and switch on the same speaker . . . . . . . . . . . 43

5

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Obsolete

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- Obsolete

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