ADAU1761BCPZ-R7 datasheet(2/92 Pages) AD

2 / 92 page

Data Sheet

ADAU1761

TABLE OF CONTENTS

analog.com

Rev. F | 2 of 92

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

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

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

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

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

Analog Performance Specifications................... 3

Power Supply Specifications.............................. 6

Typical Current Consumption............................. 7

Typical Power Management Measurements...... 7

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

Digital Input/Output Specifications..................... 9

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...................................................................24

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

DSP Core............................................................ 43

Signal Processing.............................................43

Architecture...................................................... 43

Program Counter..............................................43

Features........................................................... 43

Startup..............................................................43

Numeric Formats..............................................43

Programming....................................................44

Program RAM, Parameter RAM, and Data

RAM...................................................................45

Program RAM...................................................45

Parameter RAM................................................45

Data RAM.........................................................45

Read/Write Data Formats.................................45

Software Safeload............................................46

Software Slew.................................................. 46

General-Purpose Input/Output............................ 48

GPIO Pins Set From the Control Port.............. 48

Control Registers.................................................49

Control Register Details................................... 50

Outline Dimensions............................................. 92

Ordering Guide.................................................92

Evaluation Boards............................................ 92

REVISION HISTORY

8/2024—Rev. E to Rev. F

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

Updated Outline Dimensions......................................................................................................................... 92

Changes to Ordering Guide........................................................................................................................... 92

ADAU1761BCPZ-R7 数据表(PDF) 2 Page - Analog Devices

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