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AD1981BL
TABLE OF CONTENTS
Specifications.....................................................................................3
Rev. A | Page 2 of 32
Test Conditions.............................................................................3
General Specifications .................................................................3
Power-Down States......................................................................5
Timing Parameters.......................................................................5
Absolute Maximum Ratings............................................................9
Environmental Conditions..........................................................9
Pin Configuration and Function Descriptions...........................10
Indexed Control Registers.............................................................12
Control Register Details ................................................................13
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
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
Outline Dimensions....................................................................... 32
Ordering Guide .......................................................................... 32
REVISION HISTORY
1/05—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Changes to Ordering Guide..........................................................32
1/04—Revision 0: Initial Version