AS3543 datasheet(5/92 Pages) AMSCO

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Revision 1.11

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AS3543 3v2

Data Sheet - A p p l i c a t i o n s

Contents

1 General Description

............................................................................................................................ 1

2 Key Features

....................................................................................................................................... 1

3 Applications

........................................................................................................................................ 2

4 Pinout

................................................................................................................................................... 6

4.1 Pin Assingment

..............................................................................................................................................6

4.2 Pin Description

...............................................................................................................................................6

5 Absolute Maximum Ratings

............................................................................................................... 9

6 Electrical Characteristics

................................................................................................................. 11

7 Typical Operating Characteristics

................................................................................................... 13

8 Detailed Description - Audio Functions

.......................................................................................... 14

8.1 Audio Line Inputs (2x)

..................................................................................................................................14

8.2 Microphone Input

.........................................................................................................................................15

8.3 Line Output

..................................................................................................................................................17

8.4 Headphone Output

.......................................................................................................................................18

8.5 DAC, ADC and I2S Digital Audio Interface

..................................................................................................21

8.6 Audio Output Mixer

......................................................................................................................................24

8.7 2-Wire-Serial Control Interface

....................................................................................................................25

9 Detailed Description - Power Management Functions

.................................................................. 28

9.1 Low Drop Out Regulators

............................................................................................................................28

9.2 DCDC Step-Down Converter (2x)

................................................................................................................31

9.3 15V Step-Up DCDC Converter

....................................................................................................................35

9.4 Charger

........................................................................................................................................................37

9.5 Battery Switch

..............................................................................................................................................40

10 Detailed Description - SYSTEM Functions

................................................................................... 41

10.1 SYSTEM

....................................................................................................................................................41

10.2 Hibernation

................................................................................................................................................43

10.3 Supervisor

..................................................................................................................................................44

10.4 Interrupt Generation

...................................................................................................................................44

10.5 Real Time Clock

.........................................................................................................................................46

10.6 10-Bit ADC

.................................................................................................................................................47

10.7 GPIO Pins

..................................................................................................................................................48

10.8 12-24MHz Oscillator

..................................................................................................................................49

10.9 Unique ID Code (64 bit OTP ROM)

...........................................................................................................50

11 Register Definition

.......................................................................................................................... 51

12 Application Information

.................................................................................................................. 88

13 Package Drawings and Markings

.................................................................................................. 89

14 Ordering Information

...................................................................................................................... 90

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