ADN2841
FEATURES
50 Mbps to 2.7 Gbps operation Typical rise/fall time: 80 ps Bias current range: 2 m A to 100 m A Modulation current range: 5 m A to 80 m A Monitor photodiode current: 50 µA to 1200 µA Closed-loop control of power and extinction ratio Laser fail and laser degrade alarms Automatic laser shutdown (ALS) Dual MPD functionality for DWDM Optional clocked data Full current parameter monitoring 5 V operation 48-lead LFCSP 32-lead LFCSP (reduced functionality)
Dual-Loop, 50 Mbps to 2.7 Gbps Laser Diode Driver ADN2841
APPLICATIONS
DWDM dual MPD wavelength fixing SONET OC-1/3/12/48 SDH STM-1/4/16 Fibre Channel Gigabit Ethernet
GENERAL DESCRIPTION
The ADN2841 uses a unique control algorithm to control both the average power and extinction ratio of the laser diode (LD) after initial factory setup. Because power and extinction ratio control are fully integrated, external ponent count is low and PCB area is small. Programmable alarms are provided for laser fail (end of life) and laser degrade...
