ADN2871

Rev. 0 | Page 2 of 20

TABLE OF CONTENTS

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

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

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

Temperature Specifications ......................................................... 6

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

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

Optical Waveforms ........................................................................... 8

Multirate Performance Using Low Cost Fabry Perot Tosa

NEC NX7315UA .......................................................................... 8

Performance Over Temperature Using DFB Tosa

SUMITOMO SLT2486................................................................. 8

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

Single-Ended Output ................................................................... 9

Differential Output..................................................................... 10

Performance Characteristics..................................................... 11

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

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

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

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

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

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

REVISION HISTORY

6/05—Revision 0: Initial Version