EVAL-AD9838SDZ Analog Devices Inc, EVAL-AD9838SDZ Datasheet - Page 2

• Manufacturer Part Number: EVAL-AD9838SDZ
• Description: EVALUATION BOARD
• Manufacturer: Analog Devices Inc
• Series: -r

Specifications of EVAL-AD9838SDZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9838
• Primary Attributes: USB Powered or External Supply
• Secondary Attributes: SPI Interface
• Kit Application Type: Clock & Timing
• Application Sub Type: Clock Generator
• Kit Contents: Software CD, USB Cable
• Silicon Manufacturer: Analog Devices
• Silicon Core Number: AD9838
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AD9838
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 9
Test Circuit ...................................................................................... 12
Terminology .................................................................................... 13
Theory of Operation ...................................................................... 14
Circuit Description......................................................................... 15
REVISION HISTORY
4/11—Rev. 0 to Rev. A
Change to Title.................................................................................. 1
Change to Figure 3 ........................................................................... 5
Change to Figure 8 ........................................................................... 9
4/11—Revision 0: Initial Version
Timing Characteristics ................................................................ 5
Thermal Resistance ...................................................................... 6
ESD Caution.................................................................................. 6
Numerically Controlled Oscillator Plus Phase Modulator ... 15
SIN ROM ..................................................................................... 15
Digital-to-Analog Converter (DAC) ....................................... 15
Comparator ................................................................................. 15
Regulator...................................................................................... 16
Rev. A | Page 2 of 32
Functional Description.................................................................. 17
Applications Information .............................................................. 24
Evaluation Board ............................................................................ 26
Outline Dimensions ....................................................................... 30
Serial Interface ............................................................................ 17
Latency Period ............................................................................ 17
Control Register ......................................................................... 17
Frequency and Phase Registers ................................................ 19
Reset Function ............................................................................ 20
Sleep Function ............................................................................ 20
SIGN BIT OUT Pin.................................................................... 21
IOUT and IOUTB Pins ............................................................. 21
Powering Up the AD9838 ......................................................... 21
Grounding and Layout .............................................................. 24
Interfacing to Microprocessors................................................. 24
System Demonstration Platform.............................................. 26
AD9838 to SPORT Interface..................................................... 26
Evaluation Kit ............................................................................. 26
Crystal Oscillator vs. External Clock....................................... 26
Power Supply............................................................................... 26
Evaluation Board Schematics ................................................... 27
Evaluation Board Layout........................................................... 29
Ordering Guide .......................................................................... 30