ADN2873

Rev. 0 | Page 2 of 20

TABLE OF CONTENTS

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

 

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

 

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

 

Applications Diagram ...................................................................... 1

 

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

 

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

 

SFP Timing Specifications........................................................... 5

 

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

 

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

 

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

 

Typical Performance Characteristics ............................................. 8

 

Single-Ended Output ................................................................... 8

 

Differential Output....................................................................... 9

 

Performance Characteristics..................................................... 10

 

Optical Waveforms ......................................................................... 12

 

Theory of Operation ...................................................................... 13

 

Laser Control .............................................................................. 13

 

Control Methods ........................................................................ 13

 

Voltage Setpoint Calibration..................................................... 13

 

Resistor Setpoint Calibration.................................................... 15

 

IMPD Monitoring .......................................................................... 15

 

Loop Bandwidth Selection........................................................ 16

 

Power Consumption .................................................................. 16

 

Automatic Laser Shutdown (TX_Disable) .............................. 16

 

Bias and Modulation Monitor Currents.................................. 16

 

IBIAS Pin ..................................................................................... 16

 

Data Inputs.................................................................................. 17

 

Laser Diode Interfacing............................................................. 17

 

Alarms.......................................................................................... 18

 

Outline Dimensions ....................................................................... 19

 

Ordering Guide .......................................................................... 19

 

REVISION HISTORY

6/08—Revision 0: Initial Version