AD9835 데이터 시트보기 (PDF) - Analog Devices

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AD9835

50 MHz Direct Digital Synthesizer, Waveform Generator

Analog Devices 

AD9835

TABLE OF CONTENTS

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

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

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

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

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

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

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

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

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

Terminology .................................................................................... 12

Theory Of Operation ..................................................................... 13

Circuit Description......................................................................... 14

Numerical Controlled Oscillator and Phase Modulator ....... 14

COS LookUp Table (LUT) ........................................................ 14

Digital-to-Analog Converter .................................................... 14

Functional Description .................................................................. 15

Serial Interface ............................................................................ 15

Direct Data Transfer and Deferred Data Transfer ................. 16

REVISION HISTORY

9/11—Rev. 0 to Rev. A

Updated Format..................................................................Universal

Changes to Features and Applications........................................... 1

Changes to Specification Statement ............................................... 3

Changes to Figure 2.......................................................................... 4

Changes to Timing Characteristics Statement ............................. 5

Replaced Evaluation Board Section; Renumbered

Sequentially ..................................................................................... 22

Changes to Bill of Materials .......................................................... 27

Changes to Ordering Guide .......................................................... 28

7/98—Revision 0: Initial Version

Data Sheet

Latency......................................................................................... 17

Flowcharts ................................................................................... 17

Applications Information .............................................................. 20

Grounding and Layout .............................................................. 20

Interfacing the AD9835 to Microprocessors .......................... 20

AD9835-to-ADSP-21xx Interface ............................................ 20

AD9835-to-68HC11/68L11 Interface...................................... 21

AD9835-to-80C51/80L51 Interface......................................... 21

AD9835-to-DSP56002 Interface .............................................. 21

Evaluation Board ............................................................................ 22

System Demonstration Platform.............................................. 22

AD9835 to SPORT Interface..................................................... 22

XO vs. External Clock................................................................ 22

Power Supply............................................................................... 22

Evaluation Board Schematics and Layout............................... 23

Ordering Information.................................................................... 26

Bill of Materials........................................................................... 26

Outline Dimensions ....................................................................... 27

Ordering Guide .......................................................................... 27

Rev. A | Page 2 of 28

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