LTC2000 datasheet(2/54 Pages) AD

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LTC2000

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TABLE OF CONTENTS

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

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

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

Description.................................................. 1

Absolute Maximum Ratings.............................. 3

Pin Configuration .......................................... 3

Order Information.......................................... 4

Electrical Characteristics ................................. 5

Timing Characteristics .................................... 8

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

Pin Functions .............................................. 17

Block Diagram............................................. 18

Timing Diagrams ......................................... 19

Operation................................................... 19

Introduction............................................................ 19

Dual-Port Mode ......................................................20

Single-Port Mode....................................................20

Serial Peripheral Interface (SPI) .............................23

Power-On Reset......................................................23

Power Down ...........................................................23

Reference Operation ...............................................23

Setting the Full-Scale Current................................. 24

DAC Transfer Function ............................................25

Analog Outputs (IOUTP/N)........................................25

DAC Sample Clock (CKP/N) ....................................26

Divided Clock Output (DCKOP/N)............................26

LVDS Data Clock Input (DCKIP/N) ..........................26

LVDS Data Input Ports (DAP/N, DBP/N) .................27

Clock Synchronizer .................................................28

Minimizing Harmonic Distortion .............................30

Measuring LVDS Input Timing Skew.......................30

Measuring Internal Junction Temperature (TJ) .......33

Pattern Generator ...................................................33

SPI Register Summary................................... 34

Applications Information ................................ 35

Sample Start-Up Sequence.....................................35

Output Configurations ...........................................36

Generating the DAC Sample Clock ..........................36

Synchronizing Multiple LTC2000s in

Dual-Port Mode ......................................................37

Synchronizing Multiple LTC2000s in

Single-Port Mode....................................................40

PCB Layout Considerations .................................... 41

Pin Locations (LTC2000-16) ............................ 46

Pin Locations (LTC2000-14) ............................ 48

Pin Locations (LTC2000-11) ............................ 50

Package Description ..................................... 52

Revision History .......................................... 53

Typical Application ....................................... 54

Related Parts .............................................. 54

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