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ADN2870 Datasheet(PDF) 2 Page - Analog Devices

Part No. ADN2870
Description  3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADN2870 Datasheet(HTML) 2 Page - Analog Devices

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ADN2870
Rev. 0 | Page 2 of 20
TABLE OF CONTENTS
Specifications..................................................................................... 3
SFP Timing Specifications............................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Operating Characteristics.................................................. 8
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
Theory of Operation ...................................................................... 11
Dual-Loop Control .................................................................... 11
Control......................................................................................... 12
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
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 18
REVISION HISTORY
8/04—Revision 0: Initial Version


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