AD9911(Rev0) 데이터 시트보기 (PDF) - Analog Devices

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AD9911
(Rev.:Rev0)

500 MSPS Direct Digital Synthesizer with 10-Bit DAC

Analog Devices 

AD9911

TABLE OF CONTENTS

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

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

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

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

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

Absolute Maximum Ratings............................................................ 9

ESD Caution.................................................................................. 9

Equivalent Input and Output Circuits....................................... 9

Pin Configuration and Function Descriptions........................... 10

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

Application Circuits ....................................................................... 17

Theory of Operation ...................................................................... 18

Primary DDS Core ..................................................................... 18

SpurKiller/Multitone Mode and Test-Tone Modulation....... 18

D/A Converter ............................................................................ 18

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

Single-Tone Mode ...................................................................... 19

SpurKiller/Multitone Mode ...................................................... 19

Test-tone Mode ........................................................................... 20

Reference Clock Modes ............................................................. 20

Scalable DAC Reference Current Control Mode ................... 21

Power-Down Functions............................................................. 21

Shift Keying Modulation ........................................................... 21

Shift Keying Modulation Using SDIO Pins for RU/RD ........ 23

Linear Sweep (Shaped) Modulation Mode ............................. 23

Linear Sweep No Dwell Mode .................................................. 25

REVISION HISTORY

5/06—Revision 0: Initial Version

Sweep and Phase Accumulator Clearing Functions .............. 26

Output Amplitude Control ....................................................... 26

Synchronizing Multiple AD9911 Devices................................... 28

Operation .................................................................................... 28

Automatic Mode Synchronization ........................................... 28

Manual Software Mode Synchronization................................ 28

Manual Hardware Mode Synchronization.............................. 28

I/O_Update, SYNC_CLK, and System Clock

Relationships............................................................................... 29

I/O Port............................................................................................ 30

Overview ..................................................................................... 30

Instruction Byte Description .................................................... 30

I/O Port Pin Description........................................................... 31

I/O Port Function Description ................................................. 31

MSB/LSB Transfer Description ................................................ 31

I/O Modes of Operation............................................................ 31

Register Maps.................................................................................. 35

Control Register Map ................................................................ 35

Channel Register Map ............................................................... 36

Profile Register Map................................................................... 37

Control Register Descriptions ...................................................... 38

Channel Select Register (CSR) ................................................. 38

Channel Function Register (CFR) Description...................... 39

Outline Dimensions ....................................................................... 41

Ordering Guide .......................................................................... 41

Rev. 0 | Page 2 of 44

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