AD1937

Rev. 0 | Page 2 of 36

TABLE OF CONTENTS

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

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

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

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

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

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

Test Conditions............................................................................. 3

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

Crystal Oscillator Specifications................................................. 5

Digital Specifications ................................................................... 6

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

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

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

Timing Diagrams.......................................................................... 9

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

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

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

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

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

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

Analog-to-Digital Converters (ADCs).................................... 15

Digital-to-Analog Converters (DACs) .................................... 15

Clock Signals............................................................................... 15

Reset and Power-Down ............................................................. 16

I2C Control Port.......................................................................... 16

Power Supply and Voltage Reference....................................... 18

Serial Data Ports—Data Format............................................... 19

Time-Division Multiplexed (TDM) Modes............................ 20

Daisy-Chain Mode ..................................................................... 23

Additional Modes....................................................................... 26

Control Registers ............................................................................ 27

Definitions................................................................................... 27

PLL and Clock Control Registers............................................. 27

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

ADC Control Registers.............................................................. 30

Applications Circuits...................................................................... 32

Outline Dimensions ....................................................................... 33

Ordering Guide .......................................................................... 33

REVISION HISTORY

9/08—Revision 0: Initial Version