ADF4401ABCEZ datasheet(2/39 Pages) AD

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ADF4401A

Data Sheet

Rev. 0 | Page 2 of 39

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Characteristics ................................................................ 6

Absolute Maximum Ratings ........................................................... 7

Thermal Resistance ...................................................................... 7

Electrostatic Discharge (ESD) Ratings...................................... 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions ............................ 8

Typical Performance Characteristics........................................... 10

Theory of Operation ...................................................................... 13

Circuit Description......................................................................... 14

RF Amplifier ............................................................................... 14

Downconversion Mixer............................................................. 14

IF Amplifier................................................................................. 14

Calibration Reference Input ..................................................... 14

RF N Divider............................................................................... 14

PFD and Charge Pump.............................................................. 15

MUXOUT and VCO Calibration Lock Detect...................... 15

Double Buffers............................................................................ 16

VCO ............................................................................................. 16

Output Stage ............................................................................... 16

SPI ................................................................................................ 16

Applications Information ............................................................. 18

Device Setup................................................................................ 18

VCO Calibration, a Worked Example .................................... 19

VCO Calibration Time.............................................................. 20

Local Oscillator (LO_IN).......................................................... 20

External Phase Detector............................................................ 21

Phase Detector Reference ......................................................... 21

Power Supplies ........................................................................... 21

PCB Design Guidelines ............................................................. 21

Output Matching........................................................................ 21

Outline Dimensions....................................................................... 39

Ordering Guide .......................................................................... 39

REVISION HISTORY

12/2020—Revision 0: Initial Version

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