AD9854ASVZ datasheet(2/52 Pages) AD

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AD9854

Rev. E | Page 2 of 52

TABLE OF CONTENTS

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

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

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

Revision History ............................................................................... 3

General Description ......................................................................... 4

Specifications..................................................................................... 5

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

Thermal Resistance ...................................................................... 8

Explanation of Test Levels ........................................................... 8

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

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

Typical Performance Characteristics ........................................... 12

Typical Applications ....................................................................... 16

Theory of Operation ...................................................................... 19

Modes of Operation ................................................................... 19

Using the AD9854 .......................................................................... 29

Internal and External Update Clock ........................................ 29

On/Off Output Shaped Keying (OSK) .................................... 29

I and Q DACs.............................................................................. 30

Control DAC ............................................................................... 30

Inverse Sinc Function ................................................................ 31

REFCLK Multiplier .................................................................... 31

Programming the AD9854............................................................ 32

MASTER RESET ........................................................................ 32

Parallel I/O Operation ............................................................... 34

Serial Port I/O Operation.......................................................... 34

General Operation of the Serial Interface ................................... 36

Instruction Byte .......................................................................... 37

Serial Interface Port Pin Descriptions ..................................... 37

Notes on Serial Port Operation ................................................ 37

MSB/LSB Transfers......................................................................... 38

Control Register Description.................................................... 38

Power Dissipation and Thermal Considerations ....................... 40

Thermal Impedance................................................................... 40

Junction Temperature Considerations .................................... 40

Evaluation of Operating Conditions........................................ 41

Thermally Enhanced Package Mounting Guidelines ................ 41

Evaluation Board ............................................................................ 42

Evaluation Board Instructions.................................................. 42

General Operating Instructions ............................................... 42

Using the Provided Software .................................................... 44

Support ........................................................................................ 44

Outline Dimensions ....................................................................... 52

Ordering Guide .......................................................................... 52

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