ADAU1961WBCPZ-R7 datasheet(2/73 Pages) AD

2 / 73 page

Data Sheet

ADAU1961

TABLE OF CONTENTS

analog.com

Rev. B | 2 of 73

Features................................................................ 1

Applications........................................................... 1

General Description...............................................1

Functional Block Diagram......................................1

Specifications........................................................ 3

Analog Performance Specifications, TA =

25°C................................................................. 3

Analog Performance Specifications, −40°C

< TA < +105°C.................................................. 5

Power Supply Specifications.............................. 7

Digital Filters.......................................................8

Digital Input/Output Specifications..................... 8

Digital Timing Specifications.............................. 9

Digital Timing Diagrams................................... 10

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

Thermal Resistance......................................... 12

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

Pin Configuration and Function Descriptions...... 13

Typical Performance Characteristics................... 15

System Block Diagrams...................................... 18

Theory of Operation.............................................21

Startup, Initialization, and Power......................... 22

Power-Up Sequence........................................ 22

Power Reduction Modes.................................. 22

Digital Power Supply........................................ 22

Input/Output Power Supply.............................. 22

Clock Generation and Management.................22

Clocking and Sampling Rates............................. 24

Core Clock........................................................24

Sampling Rates................................................24

PLL...................................................................25

Record Signal Path..............................................27

Input Signal Paths............................................ 27

Analog-to-Digital Converters............................ 29

Automatic Level Control (ALC)............................ 30

ALC Parameters...............................................30

Noise Gate Function.........................................31

Playback Signal Path...........................................33

Output Signal Paths......................................... 33

Headphone Output...........................................33

Pop-and-Click Suppression..............................35

Line Outputs.....................................................35

Control Ports........................................................36

Burst Mode Writing and Reading..................... 36

I2C Port.............................................................36

SPI Port............................................................39

Serial Data Input/Output Ports.............................40

Applications Information...................................... 42

Power Supply Bypass Capacitors.................... 42

GSM Noise Filter.............................................. 42

Grounding.........................................................42

Exposed Pad PCB Design............................... 42

Control Registers.................................................43

Control Register Details................................... 44

Outline Dimensions............................................. 73

Ordering Guide.................................................73

Automotive Products........................................ 73

REVISION HISTORY

7/2024—Rev. A to Rev. B

Changed Master to Main and Slave to Subordinate (Throughout).................................................................. 1

Updated Outline Dimensions......................................................................................................................... 73

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