EVAL-ADAU1702EB View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

EVAL-ADAU1702EB

SigmaDSP® 28-/56-Bit Audio Processor with Two ADCs and Four DACs

Analog Devices 

ADAU1702

TABLE OF CONTENTS

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

RAMs and Registers....................................................................... 29

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

Address Maps.............................................................................. 29

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

Parameter RAM.......................................................................... 29

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

Data RAM ................................................................................... 29

Revision History ............................................................................... 2

Read/Write Data Formats ......................................................... 29

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

Control Register Map..................................................................... 31

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

Control Register Details ................................................................ 33

Digital Input/Output.................................................................... 4

2048 to 2055 (0x0800 to 0x0807)—Interface Registers......... 33

Power.............................................................................................. 4

2056 (0x808)—GPIO Pin Setting Register.............................. 34

Temperature Range ...................................................................... 4

PLL and Oscillator........................................................................ 4

Regulator........................................................................................ 5

Digital Timing Specifications ..................................................... 5

Digital Timing Diagrams................................................................. 7

Absolute Maximum Ratings............................................................ 9

Thermal Resistance ...................................................................... 9

ESD Caution.................................................................................. 9

Pin Configuration and Function Descriptions........................... 10

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

System Block Diagram ................................................................... 14

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

Initialization .................................................................................... 16

Power-Up Sequence ................................................................... 16

Control Registers Setup ............................................................. 16

Recommended Program/Parameter Loading Procedure ..... 16

Power-Reduction Modes ........................................................... 16

Using the Oscillator.................................................................... 17

Setting Master Clock/PLL Mode .............................................. 17

Voltage Regulator ....................................................................... 18

Audio ADCs .................................................................................... 19

Audio DACs .................................................................................... 20

Control Ports................................................................................... 21

I2C Port ........................................................................................ 22

SPI Port ........................................................................................ 25

Self-Boot ...................................................................................... 26

Signal Processing ............................................................................ 28

2057 to 2060 (0x809 to 0x80C)—

Auxiliary ADC Data Registers.................................................. 35

2064 to 2068 (0x0810 to 0x814)—Safeload Data Registers.........36

2069 to 2073 (0x0815 to 0x819) Safeload Address Registers ......36

2074 to 2075 (0x081A to 0x081B)—Data Capture Registers......37

2076 (0x081C)—DSP Core Control Register ......................... 38

2078 (0x081E)—Serial Output Control Register ................... 39

2079 (0x081F)—Serial Input Control Register....................... 40

2080 to 2081 (0x0820 to 0x0821)—

Multipurpose Pin Configuration Registers............................. 41

2082 (0x0822)—Auxiliary ADC and Power Control ............ 42

2084 (0x0824)—Auxiliary ADC Enable.................................. 42

2086 (0x0826)—Oscillator Power-Down................................ 42

2087 (0x0827)—DAC Setup...................................................... 43

Multipurpose Pins .......................................................................... 44

Auxiliary ADC............................................................................ 44

General-Purpose Input/Output Pins....................................... 44

Serial Data Input/Output Ports ................................................ 44

Layout Recommendations............................................................. 47

Parts Placement .......................................................................... 47

Grounding ................................................................................... 47

Typical Application Schematics.................................................... 48

Self-Boot Mode........................................................................... 48

I2C Control .................................................................................. 49

SPI Control.................................................................................. 50

Outline Dimensions ....................................................................... 51

Ordering Guide .......................................................................... 51

Numeric Formats........................................................................ 28

Programming .............................................................................. 28

REVISION HISTORY

10/06—Revision 0: Initial Version

Rev. 0 | Page 2 of 52

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