ADAU1977WBCPZ-R7 datasheet(2/68 Pages) AD

2 / 68 page

ADAU1977

Data Sheet

Rev. C | Page 2 of 68

TABLE OF CONTENTS

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

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

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

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

Revision History ............................................................................... 3

Specifications..................................................................................... 4

Analog Performance Specifications ........................................... 4

Diagnostic and Fault Specifications........................................... 5

Digital Input/Output Specifications........................................... 6

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

Digital Filters Specifications ....................................................... 7

Timing Specifications .................................................................. 8

Absolute Maximum Ratings.......................................................... 10

Thermal Resistance .................................................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Typical Performance Characteristics ........................................... 13

Theory of Operation ...................................................................... 15

Overview...................................................................................... 15

Power Supply and Voltage Reference....................................... 15

Power-On Reset Sequence ........................................................ 15

PLL and Clock............................................................................. 16

DC-to-DC Boost Converter...................................................... 17

Microphone Bias......................................................................... 18

Analog Inputs.............................................................................. 18

ADC ............................................................................................. 22

ADC Summing Modes .............................................................. 22

Diagnostics.................................................................................. 23

Serial Audio Data Output Ports—Data Format ..................... 25

Control Ports................................................................................... 30

I2C Mode...................................................................................... 31

SPI Mode ..................................................................................... 34

Master Power and Soft Reset Register ..................................... 37

PLL Control Register ................................................................. 38

DC-to-DC Boost Converter Control Register ....................... 39

MICBIAS and Boost Control Register .................................... 40

Block Power Control and Serial Port Control Register......... 41

Serial Port Control Register1.................................................... 42

Serial Port Control Register2.................................................... 43

Channel Mapping for Output Serial Ports Register............... 44

Channel Mapping for Output Serial Ports Register............... 46

Serial Output Drive and Overtemperature Protection

Control Register ......................................................................... 48

Post ADC Gain Channel 1 Control Register .......................... 49

Post ADC Gain Channel 2 Control Register .......................... 50

Post ADC Gain Channel 3 Control Register .......................... 51

Post ADC Gain Channel 4 Control Register .......................... 52

High-Pass Filter and DC Offset Control Register and

Master Mute ................................................................................ 53

Diagnostics Control Register.................................................... 54

Diagnostics Report Register Channel 1 .................................. 55

Diagnostics Report Register Channel 2 .................................. 56

Diagnostics Report Register Channel 3 .................................. 57

Diagnostics Report Register Channel 4 .................................. 58

Diagnostics Interrupt Pin Control Register 1......................... 59

Diagnostics Interrupt Pin Control Register 2......................... 60

Diagnostics Adjustments Register 1 ........................................ 61

Diagnostics Adjustments Register 2 ........................................ 62

ADC Clipping Status Register .................................................. 63

Digital DC High-Pass Filter and Calibration Register.......... 64

Applications Circuit ....................................................................... 65

Outline Dimensions....................................................................... 66

Ordering Guide .......................................................................... 66

Automotive Products................................................................. 66

ADAU1977WBCPZ-R7 Datasheet(PDF) 2 Page - Analog Devices

ADAU1977WBCPZ-R7 Datasheet(HTML) 2 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Datasheet Download

Link URL