General Description
The i7511N is an integrated burst-mode/continuous mode laser driver and continuous mode Limiting amplifier that operates at data rates from 155Mbps up to 1.25Gbps. The laser driver accepts either positive-referenced emitter coupled logic (PECL) or current-mode logic (CML) data inputs and provides bias and modulation current for the laser diode. The device can switch the laser diode from a completely dark (off) condition to a full (on) condition (with proper bias and modulation currents) in less than 3ns. The i7511N incorporates DC-coupling between laser driver and laser diode.

Features
● Integrate Laser diode driver and Limiting Amplifier
● Operation data rate 155Mbps and 1.25Gbps
● Programmable Modulation Current from 3mA to 80mA (DC-Coupled)
● Programmable modulation current with temperature compensation
● Programmable Bias Current from 1mA to 80mA
● Limiting Amplifier includes integrated DC offset cancellation circuit
● Polarity Control for limiting Amplifier Data path and Driver Disable input
● Programmable chatter-free signal level detector
● 4 mV input sensitivity (differential).

Applications
   APON and GEPON Upstream Transmitters
   Passive Optical Network (PON) Transmitters
   Fiber-to-the-Home(FTTH) and Fiber-to-the-Premises (FTTP)
   Broadband Access Systems