AD1981BJST Analog Devices Inc, AD1981BJST Datasheet - Page 2

• Manufacturer Part Number: AD1981BJST
• Description: IC CODEC STEREO MICPREAMP 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1981BJST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 4 / 2
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 3 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1981B
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. B to Rev. C
Updated Format..................................................................Universal
Changes to Ordering Guide .......................................................... 32
6/03—Rev. A to Rev. B
Changes to TIMING PARAMETERS............................................ 4
Changes to ENVIRONMENTAL CONDITIONS ....................... 7
Changes to ORDERING GUIDE ................................................... 7
Updated OUTLINE DIMENSIONS ............................................ 27
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. C | Page 2 of 32
Outline Dimensions ....................................................................... 32
2/03—Rev. 0 to Rev. A
Changes to FUNCTIONAL BLOCK DIAGRAM .........................1
Changes to SPECIFICATIONS .......................................................2
Changes to TIMING PARAMETERS.............................................4
Change to Figure 6 Caption .............................................................6
10/02—Revision 0: Initial Version
................................................................................................................
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