ADSP-1981BL AD [Analog Devices], ADSP-1981BL Datasheet - Page 2

• Manufacturer Part Number: ADSP-1981BL
• Description: AC 97 SoundMAX Codec
• Manufacturer: AD [Analog Devices]

AD1981BL
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 9
Pin Configuration and Function Descriptions........................... 10
Indexed Control Registers ............................................................. 12
Control Register Details ................................................................ 13
REVISION HISTORY
1/05—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Changes to Ordering Guide .......................................................... 32
1/04—Revision 0: Initial Version
Test Conditions............................................................................. 3
General Specifications ................................................................. 3
Power-Down States ...................................................................... 5
Timing Parameters ....................................................................... 5
Environmental Conditions.......................................................... 9
Reset Register .............................................................................. 13
Master Volume Register............................................................. 13
Headphone Volume Register .................................................... 14
Mono Volume Register .............................................................. 15
Phone Volume Register.............................................................. 15
MIC Volume Register................................................................. 16
Line-In Volume Register............................................................ 16
CD Volume Register................................................................... 17
AUX Volume Register ................................................................ 17
Rev. A | Page 2 of 32
Outline Dimensions ....................................................................... 32
PCM-Out Volume Register....................................................... 18
Record Select Control Register................................................. 19
Record Gain Register ................................................................. 19
General-Purpose Register ......................................................... 20
Power-Down Control/Status Register ..................................... 21
Extended Audio ID Register ..................................................... 22
Extended Audio Status and Control Register......................... 22
PCM Front DAC Rate Register................................................. 23
PCM ADC Rate Register ........................................................... 23
SPDIF Control Register ............................................................. 24
EQ Control Register................................................................... 24
EQ Data Register ........................................................................ 26
Mixer ADC, Input Gain Register ............................................. 26
Jack Sense/Audio Interrupt/Status Register............................ 27
Serial Configuration Register ................................................... 29
Miscellaneous Control Bit Register ......................................... 29
Vendor ID Registers................................................................... 31
Ordering Guide .......................................................................... 32