SSM2603

Rev. 0 | Page 2 of 32

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

Hardware Mute Pin .................................................................... 11

Automatic Level Control (ALC)............................................... 12

Analog Interface ......................................................................... 13

Digital Audio Interface .............................................................. 15

Software Control Interface........................................................ 17

Typical Application Circuits ......................................................... 18

Register Map ................................................................................... 19

Register Map Details ...................................................................... 20

Left-Channel ADC Input Volume, Address 0x00.................. 20

Right-Channel ADC Input Volume, Address 0x01 ............... 21

Left-Channel DAC Volume, Address 0x02............................. 22

Right-Channel DAC Volume, Address 0x03 .......................... 22

Analog Audio Path, Address 0x04 ........................................... 23

Digital Audio Path, Address 0x05 ............................................ 23

Power Management, Address 0x06.......................................... 24

Digital Audio I/F, Address 0x07 ............................................... 25

Sampling Rate, Address 0x08.................................................... 25

Active, Address 0x09.................................................................. 28

Software Reset, Address 0x0F................................................... 28

ALC Control 1, Address 0x10................................................... 29

ALC Control 2, Address 0x11................................................... 29

Noise Gate, Address 0x12.......................................................... 30

Outline Dimensions ....................................................................... 31

Ordering Guide .......................................................................... 31

REVISION HISTORY

2/08—Revision 0: Initial Version