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AD1986

AC ’97 SoundMAX CODEC

Analog Devices 

AD1986

TABLE OF CONTENTS

Functional Block Diagram .............................................................. 4

Specifications..................................................................................... 5

AC ’97 Timing Parameters .......................................................... 9

Absolute Maximum Ratings.......................................................... 12

Environmental Conditions........................................................ 12

ESD Caution................................................................................ 12

Pin Configuration And Function Description ........................... 13

AC ’97 Registers .............................................................................. 15

Register Details ............................................................................... 17

Reset (Register 0x00).................................................................. 17

Master Volume (Register 0x02) ................................................ 17

Headphone Volume (Register 0x04)........................................ 18

Mono Volume (Register 0x06).................................................. 18

PC Beep (Register 0x0A)........................................................... 19

Phone Volume (Register 0x0C) ................................................ 19

Microphone Volume (Register 0x0E) ...................................... 20

Line In Volume (Register 0x10)................................................ 21

CD Volume (Register 0x12) ...................................................... 21

AUX Volume (Register 0x16) ................................................... 22

Front DAC Volume (Register 0x18)......................................... 22

ADC Select (Register 0x1A)...................................................... 23

ADC Volume (Register 0x1C) .................................................. 24

General-Purpose (Register 0x20)............................................. 25

Audio Int and Paging (Register 0x24) ..................................... 25

Power-Down Ctrl/Stat (Register 0x26).................................... 26

Ext’d Audio ID (Register 0x28)................................................. 27

Ext’d Audio Stat/Ctrl (Register 0x2A)...................................... 28

Front DAC PCM Rate (Register 0x2C) ................................... 29

Surround DAC PCM Rate (Register 0x2E) ............................ 30

C/LFE DAC PCM Rate (Register 0x30) .................................. 30

ADC PCM Rate (Register 0x32) .............................................. 30

C/LFE DAC Volume (Register 0x36)....................................... 31

Surround DAC Volume (Register 0x38) ................................. 31

SPDIF Control (Register 0x3A)................................................ 32

EQ Control Register (Register 0x60) ....................................... 33

EQ Data Register (Register 0x62) ............................................ 34

Misc Control Bits 2 (Register 0x70)......................................... 34

Jack Sense (Register 0x72)......................................................... 35

Serial Configuration (Register 0x74)....................................... 37

Misc Control Bits 1 (Register 0x76)......................................... 39

Advanced Jack Sense (Register 0x78) ...................................... 40

Misc Control Bits 3 (Register 0x7A)........................................ 41

Vendor ID Registers (Register 0x7C to 0x7E) ........................ 42

CODEC Class/Revision Register (Register 0x60).................. 42

PCI Subsystem Vendor ID Register (Register 0x62, Page 01)

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

PCI Subsystem Device ID Register (Register 0x64, Page 01)43

Function Select Register (Register 0x66, Page 01)................. 43

Information and I/O Register (Register 0x68, Page 01)........ 44

Sense Register (Register 0x6A, Page 01) ................................. 46

Jack Presence Detection................................................................. 48

Audio Jack Styles (NC/NO) ...................................................... 48

Microphone Selection/Mixing...................................................... 49

Outline Dimensions ....................................................................... 50

Ordering Guide .......................................................................... 50

REVISION HISTORY

10/04—Initial Version: Revision 0

Rev. 0 | Page 2 of 52

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