AD9833
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Control Register ......................................................................... 13
Frequency and Phase Registers ................................................ 15
Reset Function ............................................................................ 16
Sleep Function ............................................................................ 16
VOUT Pin ................................................................................... 16
Applications Information .............................................................. 17
Grounding and Layout .............................................................. 17
Interfacing to Microprocessors..................................................... 20
AD9833 to 68HC11/68L11 Interface....................................... 20
AD9833 to 80C51/80L51 Interface.......................................... 20
AD9833 to DSP56002 Interface ............................................... 20
Evaluation Board ............................................................................ 21
System Demonstration Platform.............................................. 21
AD9833 to SPORT Interface..................................................... 21
Evaluation Kit ............................................................................. 21
Crystal Oscillator vs. External Clock....................................... 21
Power Supply............................................................................... 21
Evaluation Board Schematics ................................................... 22
Evaluation Board Layout........................................................... 23
Outline Dimensions....................................................................... 24
Ordering Guide .......................................................................... 24
Automotive Products................................................................. 24
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 4
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 7
Terminology .................................................................................... 10
Theory of Operation ...................................................................... 11
Circuit Description......................................................................... 12
Numerically Controlled Oscillator Plus Phase Modulator... 12
Sin ROM ...................................................................................... 12
Digital-to-Analog Converter (DAC) ....................................... 12
Regulator...................................................................................... 12
Functional Description.................................................................. 13
Serial Interface ............................................................................ 13
Powering Up the AD9833 ......................................................... 13
Latency Period ............................................................................ 13
REVISION HISTORY
9/12—Rev. D to Rev. E
Added Evaluation Board Layout Section, Figure 36,
Figure 37, and Figure 38................................................................ 23
Changes to Ordering Guide.......................................................... 24
Changed Input Current, IINH/IINL from 10 mA to 10 µA.............. 3
4/11—Rev. C to Rev. D
9/10—Rev. B to Rev. C
Change to Figure 13 ......................................................................... 8
Changes to Table 9.......................................................................... 15
Deleted AD9833 to ADSP-2101/ADSP-2103 Interface
Section.............................................................................................. 20
Changes to Evaluation Board Section.......................................... 21
Added System Demonstration Platform Section, AD9833
to SPORT Interface Section, and Evaluation Kit Section.......... 21
Changes to Crystal Oscillator vs. External Clock Section
and Power Supply Section ............................................................. 21
Added Figure 32 and Figure 33; Renumbered Figures
Sequentially ..................................................................................... 21
Deleted Prototyping Area Section and Figure 33....................... 22
Added Evaluation Board Schematics Section, Figure 34,
and Figure 35................................................................................... 22
Deleted Table 16.............................................................................. 23
Changed 20 mW to 12.65 mW in Data Sheet Title
and Features List................................................................................1
Changes to Figure 6 Caption and Figure 7.....................................7
6/10—Rev. A to Rev. B
Changes to Features Section ............................................................1
Changes to Serial Interface Section.............................................. 13
Changes to VOUT Pin Section..................................................... 16
Changes to Grounding and Layout Section................................ 17
Updated Outline Dimensions....................................................... 24
Changes to Ordering Guide.......................................................... 24
Added Automotive Products Section .......................................... 24
6/03—Rev. 0 to Rev. A
Updated Ordering Guide .................................................................4
Rev. E | Page 2 of 24
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