SSM2604

Rev. 0 | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

Digital Filter Characteristics ....................................................... 4

 

Timing Characteristics ................................................................ 5

 

Absolute Maximum Ratings............................................................ 7

 

Thermal Resistance ...................................................................... 7

 

ESD Caution.................................................................................. 7

 

Pin Configuration and Function Descriptions............................. 8

 

Typical Performance Characteristics ............................................. 9

 

Converter Filter Response........................................................... 9

 

Digital De-Emphasis .................................................................. 10

 

Theory of Operation ...................................................................... 11

 

Digital Core ................................................................................. 11

 

ADC and DAC............................................................................ 11

 

ADC High-Pass and DAC De-Emphasis Filters .................... 11

 

Analog Interface ......................................................................... 12

 

Digital Audio Interface .............................................................. 12

 

Software Control Interface........................................................ 15

 

Typical Application Circuits ......................................................... 16

 

Register Map ................................................................................... 17

 

Register Map Details ...................................................................... 18

 

Left-Channel ADC Input Volume, Address 0x00.................. 18

 

Right-Channel ADC Input Volume, Address 0x01 ............... 19

 

Analog Audio Path, Address 0x04 ........................................... 20

 

Digital Audio Path, Address 0x05 ............................................ 20

 

Power Management, Address 0x06.......................................... 21

 

Digital Audio I/F, Address 0x07 ............................................... 22

 

Sampling Rate, Address 0x08.................................................... 22

 

Active, Address 0x09.................................................................. 25

 

Software Reset, Address 0x0F................................................... 25

 

Outline Dimensions ....................................................................... 26

 

Ordering Guide .......................................................................... 26

 

REVISION HISTORY

7/08—Revision 0: Initial Version