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3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver ADN2870
FEATURES
SFP/SFF and SFF-8472 MSA-compliant SFP reference design available 50 Mbps to 3.3 Gbps operation Multirate 155 Mbps to 3.3 Gbps operation Dual-loop control of average power and extinction ratio Typical rise/fall time 60 ps Bias current range 2 mA to 100 mA Modulation current range 5 mA to 90 mA Laser fail alarm and automatic laser shutdown (ALS) Bias and modulation current monitoring 3.3 V operation 4 mm × 4 mm LFCSP package Voltage setpoint control Resistor setpoint control
GENERAL DESCRIPTION
The ADN2870 laser diode driver is designed for advanced SFP and SFF modules, using SFF-8472 digital diagnostics.