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AD8155

XStream™ 6.5 Gbps Dual Buffer Mux/Demux

Analog Devices 

AD8155

TABLE OF CONTENTS

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

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

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

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

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

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

I2C Timing Specifications............................................................ 5

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

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

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

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

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

The Switch (Mux/Demux/Unicast/Bicast/Loopback) ........... 16

Receivers ...................................................................................... 18

Loss of Signal (LOS)................................................................... 20

Transmitters ................................................................................ 21

REVISION HISTORY

7/09—Revision 0: Initial Version

AD8155 Power Consumption .................................................. 22

I2C Control Interface...................................................................... 24

Serial Interface General Functionality..................................... 24

I2C Interface Data Transfers: Data Write ................................ 24

I2C Interface Data Transfers: Data Read ................................. 25

Applications Information .............................................................. 26

Output Compliance ................................................................... 27

Signal Levels and Common-Mode Shift for AC-Coupled and

DC-Coupled Outputs ................................................................ 28

Supply Sequencing ..................................................................... 30

Single Supply vs. Multiple Supply Operation ......................... 30

Initialization Sequence for Low Power and LOS_INT

Operation .................................................................................... 30

Printed Circuit Board (PCB) Layout Guidelines ................... 31

Register Map ................................................................................... 33

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

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

Rev. 0 | Page 2 of 36

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