ADAV400

Rev. A | Page 2 of 36

TABLE OF CONTENTS

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

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

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

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

General Description ......................................................................... 3

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

Digital Timing............................................................................... 6

Absolute Maximum Ratings............................................................ 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions............................. 9

Typical Performance Characteristics ........................................... 11

Theory of Operation ...................................................................... 13

Analog Inputs.............................................................................. 13

Sample Rate Converter Block ................................................... 13

PLL Block..................................................................................... 13

Analog Outputs........................................................................... 13

Headphone Amplifier ................................................................ 14

Voltage Regulator ....................................................................... 14

Control Port..................................................................................... 15

I2C Port ........................................................................................ 15

Signal Processing ............................................................................ 18

Numeric Formats........................................................................ 18

Programming .............................................................................. 18

RAMs and Registers....................................................................... 19

Control Port Addressing ........................................................... 19

Parameter RAM Contents......................................................... 19

Recommended Program/Parameter Loading Procedures.... 20

Target/Slew RAM ....................................................................... 20

Safe Load Registers..................................................................... 23

Data Capture Registers .............................................................. 23

Control Port Read/Write Data Formats .................................. 24

Serial Data Input/Output Ports .................................................... 26

Control Registers ............................................................................ 28

Audio Core Control Register .................................................... 31

RAM Modulo Control Register................................................ 32

Serial Output Control Registers ............................................... 32

Serial Input Control Register .................................................... 32

SRC Serial Port Control Register ............................................. 33

ADC Input Mux Register .......................................................... 33

Power Control Register ............................................................. 33

User Control Register 2 ............................................................. 33

User Control Register 1 ............................................................. 33

DAC Amplifier Register ............................................................ 33

Typical Application Diagram........................................................ 34

Outline Dimensions ....................................................................... 35

Ordering Guide .......................................................................... 35

REVISION HISTORY

7/07—Rev. 0 to Rev. A

Change to ADC Section, Total Harmonic Distortion + Noise .........4

Change to DAC Outputs (Single-Ended),

Total Harmonic Distortion + Noise..................................................4

Changes to Ordering Guide...................................................................35

1/06—Revision 0: Initial Version