ADF5901

Data Sheet

Rev. A | Page 2 of 26

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Specifications .................................................................. 4

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

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

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

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

Theory of Operation ...................................................................... 11

Reference Input Section............................................................. 11

RF INT Divider........................................................................... 11

INT, FRAC, and R Relationship ............................................... 11

R Counter .................................................................................... 11

Input Shift Register..................................................................... 11

Program Modes .......................................................................... 11

Register Maps.................................................................................. 13

Register 0 ..................................................................................... 15

Register 1 ..................................................................................... 16

Register 2 ..................................................................................... 17

Register 3 ..................................................................................... 18

Register 4 ..................................................................................... 19

Register 5 ..................................................................................... 19

Register 6 ..................................................................................... 20

Register 7 ..................................................................................... 21

Register 8 ..................................................................................... 22

Register 9 ..................................................................................... 22

Register 10................................................................................... 23

Register 11................................................................................... 23

Initialization Sequence .............................................................. 23

Recalibration Sequence ............................................................. 23

Temperature Sensor ................................................................... 24

RF Synthesis: a Worked Example............................................. 24

Applications Information .............................................................. 25

Application of the ADF5901 in FMCW Radar ...................... 25

Outline Dimensions....................................................................... 26

Ordering Guide .......................................................................... 26

Automotive Products................................................................. 26

REVISION HISTORY

7/2016—Rev. 0 to Rev. A

Changes to Applications Section .................................................... 1

Changes to Initialization Sequence Section and Recalibration

Sequence Section ............................................................................ 23

12/2015—Revision 0: Initial Version