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.

特性 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