AD8155

Rev. 0 | Page 2 of 36

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

 

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

 

REVISION HISTORY

7/09—Revision 0: Initial Version