ALC658

Datasheet

Six-Channel AC’97 2.3 Audio Codec

Rev. 1.3

iv

6.3.4.

MX68 Sense Function Information.........................................................................................................27

6.3.5.

MX6A Sense Detail.................................................................................................................................27

6.4.

EXTENSION REGISTERS ...........................................................................................................................28

6.4.1.

MX76 GPIO & Interrupt Control...........................................................................................................28

6.4.2.

MX78 GPIO & Interrupt Status .............................................................................................................29

6.4.3.

MX7AMiscellaneousControl........................................................................................................................30

6.4.4.

MX7C Vendor ID1..................................................................................................................................31

6.4.5.

MX7E Vendor ID2 ..................................................................................................................................31

7.

ELECTRICAL CHARACTERISTICS ............................................................................................................................32

7.1.

ABSOLUTE MAXIMUM RATINGS..............................................................................................................32

7.1.1.

Threshold Hold Voltage..........................................................................................................................32

7.1.2.

Digital Filter Characteristics.................................................................................................................33

7.1.3.

S/PDIF Output Characteristics..............................................................................................................33

7.2.

AC TIMING CHARACTERISTICS ...............................................................................................................33

7.2.1.

Cold Reset ..............................................................................................................................................33

7.2.2.

Warm Reset.............................................................................................................................................34

7.2.3.

AC-Link Clocks ......................................................................................................................................34

7.2.4.

Data Output and Input Timing ...............................................................................................................35

7.2.5.

Signal Rise and Fall Timing ...................................................................................................................36

7.2.6.

AC-Link Low Power Mode Timing.........................................................................................................37

7.2.7.

ATE Test Mode .......................................................................................................................................37

7.2.8.

AC-Link IO Pin Capacitance and Loading ............................................................................................38

7.2.9.

S/PDIF Output .......................................................................................................................................38

8.

ANALOG PERFORMANCE CHARACTERISTICS.....................................................................................................39

9.

DESIGN AND LAYOUT GUIDE......................................................................................................................................41

9.1.

CLOCKING...............................................................................................................................................41

9.2.

AC-LINK.................................................................................................................................................41

9.3.

RESET .....................................................................................................................................................42

9.4.

CD INPUT................................................................................................................................................42

9.5.

ODD ADDRESSED REGISTER ACCESS ......................................................................................................43

9.6.

POWER DOWN MODE..............................................................................................................................43

9.7.

TEST MODE.............................................................................................................................................43

9.7.1.

ATE in Circuit Test Mode .......................................................................................................................43

9.7.2.

Vendor Specific Test Mode......................................................................................................................43

9.8.

POWER OFF CD FUNCTION ..................................................................................................................44

10.

APPLICATION CIRCUITS..........................................................................................................................................45

11.

MECHANICAL DIMENSIONS ...................................................................................................................................46

12.

ORDERING INFORMATION......................................................................................................................................43