AIS25BA datasheet(27/31 Pages) STMICROELECTRONICS

27 / 31 page

Contents

Pin description ....................................................................2

Mechanical and electrical specifications ...........................................3

2.1

Mechanical characteristics ....................................................... 3

2.2

Electrical characteristics......................................................... 4

2.3

Absolute maximum ratings....................................................... 5

TDM interface characteristics ......................................................6

3.1

I²C interface characteristics ...................................................... 7

TDM interface specifications .......................................................9

4.1

TDM interface overview ......................................................... 9

4.2

Frame synchronization (WCLK) ................................................. 10

4.3

Serial clock (BCLK)............................................................ 10

4.4

Mapping the TDM axes ........................................................ 11

4.5

TDM configurations............................................................ 12

4.5.1

Configuration 1 ......................................................... 12

4.5.2

Configuration 2 ......................................................... 12

4.5.3

Configuration 3 ......................................................... 13

4.5.4

Configuration 4 ......................................................... 13

4.6

TDM clocks and MCLK requirements ............................................. 13

I²C- inter-IC control interface ......................................................14

5.1

I²C interface .................................................................. 14

5.2

I²C interface details ............................................................ 15

5.3

I²C slave address ............................................................. 15

5.4

I²C read and write sequences ................................................... 15

Features..........................................................................16

6.1

Self-test mode ................................................................ 16

6.2

Power cycle/reset information ................................................... 16

6.2.1

TDM interface power-on sequence .......................................... 16

6.2.2

Disabled mode ......................................................... 17

8.1

TEST_REG (0Bh) ............................................................. 19

8.2

WHO_AM_I (0Fh) ............................................................. 19

8.3

TDM_cmax (24h-25h).......................................................... 19

8.4

CTRL_REG_1 (26h) ........................................................... 19

AIS25BA

Contents

DS14019 - Rev 1

page 27/31

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