Datasheet

AD5689R/AD5687R Data Sheet
Rev. 0 | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
AC Characteristics ........................................................................ 5
Timing Characteristics ................................................................ 6
Daisy-Chain and Readback Timing Characteristics................ 7
Absolute Maximum Ratings ............................................................ 9
ESD Caution .................................................................................. 9
Pin Configurations and Function Descriptions ......................... 10
Typical Performance Characteristics ........................................... 11
Terminology .................................................................................... 17
Theory of Operation ...................................................................... 19
Digital-to-Analog Converters ................................................... 19
Transfer Function ....................................................................... 19
DAC Architecture ....................................................................... 19
Serial Interface ............................................................................ 20
Standalone Operation ................................................................ 21
Write and Update Commands .................................................. 21
Daisy-Chain Operation ............................................................. 21
Readback Operation .................................................................. 22
Power-Down Operation ............................................................ 22
Load DAC (Hardware
LDAC
Pin) ........................................... 23
LDAC
Mask Register ................................................................. 23
Hardware Reset (
RESET
) .......................................................... 24
Reset Select Pin (RSTSEL) ........................................................ 24
Internal Reference Setup ........................................................... 24
Solder Heat Reflow ..................................................................... 24
Long-Term Temperature Drift ................................................. 24
Thermal Hysteresis .................................................................... 25
Applications Information .............................................................. 26
Microprocessor Interfacing ....................................................... 26
AD5689R/AD5687R to ADSP-BF531 Interface ...................... 26
AD5689R/AD5687R to SPORT Interface ................................ 26
Layout Guidelines....................................................................... 26
Galvanically Isolated Interface ................................................. 26
Outline Dimensions ....................................................................... 27
Ordering Guide .......................................................................... 28
REVISION HISTORY
2/13—Revision 0: Initial Version