Document
M02067 -12/-13
3.3 Volt Laser Driver IC for GbE and Fibre Channel to 2.1 Gbps
Rev V4
Features
• Rise and fall times <150 ps
• DC or AC-coupled modulation drive
• Independently programmable laser bias and modulation currents
• Bias current to 100 mA and modulation current to 85 mA at VCC = 3.3V
• Automatic laser power control, with programmable compensation and ‘slow-start’
temperature
• Bias and modulation current monitors
• Operates with +3.3V supply
Applications
• Gigabit Ethernet • Fibre Channel • 2 x Fibre Channel • GBIC
The M02067 is a highly integrated, programmable laser driver intended for datacom applications up to 2.1 Gbps. Using differential PECL data inputs, the M02067 supplies the bias and modulation current for driving an edgeemitting laser. The modulation output can be DC-coupled to the laser diode, giving a significant power saving over AC-coupled operation.
The M02067 includes automatic power control to maintain a constant average l.