ADN2870 Analog Devices, Inc., ADN2870 Datasheet - Page 2

• Manufacturer Part Number: ADN2870
• Description: 3.3 V Dual-loop, 50 Mbps To 3.3 Gbps Laser Diode Driver
• Manufacturer: Analog Devices, Inc.

ADN2870
TABLE OF CONTENTS
Specifications..................................................................................... 3
SFP Timing Specifications............................................................... 5
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Typical Operating Characteristics.................................................. 8
Theory of Operation ...................................................................... 11
REVISION HISTORY
8/04—Revision 0: Initial Version
ESD Caution.................................................................................. 6
Optical Waveforms Showing Multirate Performance Using
Low Cost Fabry Perot Tosa NEC NX7315UA .......................... 8
Optical Waveforms Showing Dual-Loop Performance Over
Temperature Using DFB Tosa SUMITOMO SLT2486............ 8
Performance Characteristics....................................................... 9
Dual-Loop Control .................................................................... 11
Control......................................................................................... 12
Rev. 0 | Page 2 of 20
Outline Dimensions ....................................................................... 18
Voltage Setpoint Calibration..................................................... 12
Resistor Setpoint Calibration.................................................... 14
IMPD Monitoring ...................................................................... 14
Loop Bandwidth Selection ........................................................ 15
Power Consumption .................................................................. 15
Automatic Laser Shutdown (TX_Disable).............................. 15
Bias and Modulation Monitor Currents.................................. 15
Data Inputs.................................................................................. 15
Laser Diode Interfacing............................................................. 16
Alarms.......................................................................................... 17
Ordering Guide .......................................................................... 18