ADF4372 datasheet(2/47 Pages) AD

2 / 47 page

ADF4372

Data Sheet

Rev. 0 | Page 2 of 47

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Specifications .................................................................. 6

Absolute Maximum Ratings............................................................ 8

Thermal Resistance ...................................................................... 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions............................. 9

Typical Performance Characteristics ........................................... 11

Theory of Operation ...................................................................... 15

RF Synthesizer, a Worked Example.......................................... 15

Reference Input Sensitivity........................................................ 15

Reference Doubler and Reference Divider ............................. 16

Spurious Optimization and Fast Lock ..................................... 16

Optimizing Jitter......................................................................... 16

Spur Mechanisms ....................................................................... 16

Lock Time.................................................................................... 16

Circuit Description......................................................................... 18

Reference Input........................................................................... 18

RF N Divider............................................................................... 18

PFD and Charge Pump.............................................................. 19

MUXOUT and Lock Detect...................................................... 19

Double Buffers ............................................................................ 19

VCO ............................................................................................. 20

Output Stage................................................................................ 20

Doubler ........................................................................................ 21

Output Stage Mute ..................................................................... 21

SPI................................................................................................. 21

Device Setup.................................................................................... 22

Step 1: Set Up the SPI Interface ................................................ 22

Step 2: Initialization Sequence.................................................. 22

Step 3: Frequency Update Sequence ........................................ 22

Applications Information .............................................................. 23

Power Supplies ............................................................................ 23

PCB Design Guidelines for an LGA Package ......................... 23

Output Matching ........................................................................ 23

Outline Dimensions ....................................................................... 47

Ordering Guide .......................................................................... 47

REVISION HISTORY

8/2019—Revision 0: Initial Version

ADF4372 датащи(PDF) 2 Page - Analog Devices

ADF4372 датащи(HTML) 2 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

датащи скачать

ссылки URL