ADF4356

Data Sheet

Rev. A | Page 2 of 35

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Characteristics ................................................................ 5

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

Transistor Count........................................................................... 6

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

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

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

Theory of Operation ...................................................................... 12

Reference Input Section............................................................. 12

RF N Divider............................................................................... 12

Phase Frequency Detector (PFD) and Charge Pump............ 13

MUXOUT and Lock Detect...................................................... 13

Input Shift Registers................................................................... 13

Program Modes .......................................................................... 14

VCO.............................................................................................. 14

Output Stage................................................................................ 14

Register Maps.................................................................................. 16

Register 0 ..................................................................................... 18

Register 1 ..................................................................................... 19

Register 2 ..................................................................................... 19

Register 3 ..................................................................................... 20

Register 4 ..................................................................................... 21

Register 5 ..................................................................................... 22

Register 6 ..................................................................................... 23

Register 7 ..................................................................................... 25

Register 8 ..................................................................................... 26

Register 9 ..................................................................................... 26

Register 10................................................................................... 27

Register 11................................................................................... 28

Register 12................................................................................... 28

Register 13................................................................................... 29

Register Initialization Sequence ............................................... 29

Frequency Update Sequence..................................................... 30

RF Synthesizer—A Worked Example ...................................... 30

Reference Doubler and Reference Divider ............................. 31

Spurious Optimization and Fast Lock..................................... 31

Optimizing Jitter......................................................................... 31

Spur Mechanisms ....................................................................... 31

Lock Time.................................................................................... 31

Applications Information .............................................................. 33

Power Supplies............................................................................ 33

Printed Circuit Board (PCB) Design Guidelines for a Chip-

Scale Package .............................................................................. 33

Output Matching........................................................................ 34

Outline Dimensions....................................................................... 35

Ordering Guide .......................................................................... 35

REVISION HISTORY

6/2017—Rev. 0 to Rev. A

Changes to Frequency Update Sequence Section ...................... 30

10/2016—Revision 0—Initial Version