AN-1177

Application Note

Rev. 0 | Page 2 of 12

TABLE OF CONTENTS

Introduction ...................................................................................... 1

LVDS/M-LVDS Application Considerations................................ 1

Why use LVDS or M-LVDS?........................................................... 1

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

Bus Types and Topologies ............................................................... 3

Point-to-Point ............................................................................... 3

Multi-Drop .................................................................................... 3

Multipoint...................................................................................... 3

Clock Distribution Applications..................................................... 4

Multi-Drop Clock Distribution.................................................. 4

Point-to-Point Clock Distribution ............................................. 4

Clock Distribution Using M-LVDS ........................................... 4

Differential Signalling and LVDS/M-LVDS.................................. 5

Definitions and Output Levels ....................................................5

Receiver Thresholds......................................................................5

Transmission Distance..................................................................6

Termination and PCB Layout ..........................................................7

Controlled Impedances ................................................................7

Jitter, Skew, Data Encoding, and Synchronization........................8

What is Jitter?.................................................................................8

What is Skew? ................................................................................8

Data Encoding and Synchronization..........................................9

Isolation ........................................................................................... 10

References........................................................................................ 11

Related Links............................................................................... 11

REVISION HISTORY

3/13—Revision 0: Initial Version