GENERAL DESCRIPTION
The ADN2841 uses a unique control algorithm to control both average power and extinction ratio of the laser diode (LD) after initial factory set up. External component count and PCB area are low as both power and extinction ratio control are fully integrated. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail). The ADN2841 has circuitry for a second monitor photodiode which enables DWDM wavelength control.

FEATURES
   50 Mbps to 2.7 Gbps Operation
   Typical Rise/Fall Time 80 ps
   Bias Current Range 2 to 100 mA
   Modulation Current Range 5 to 80 mA
   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 Package
   32-Lead LFCSP Package (Reduced Functionality)

APPLICATIONS
   DWDM Dual MPD Wavelength Fixing
   SONET OC-1/3/12/48
   SDH STM-1/4/16
   Fiber Channel
   Gigabit Ethernet