SY88232L/AL

2.5Gbps Laser Diode Driver with Integrated

Limiting Amplifier

MLF and MicroLeadFrame are registered trademarks of Amkor Technology

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

June 2009

M9999-063009-A

General Description

The SY88232L is a single supply 3.3V integrated laser

driver and post amplifier for telecom/datacom applications

with data rates from 155Mbps up to 2.5Gbps. The driver

can deliver modulation current up to 85mA, and provides a

high compliance voltage that makes it suitable for high-

current operation with the laser DC-coupled to it. The post

amplifier can detect signals with amplitude as low as

The SY88232AL is a version of the SY88232L without 50Ω

termination resistors at the inputs of the driver and the post

amplifier. The SY88232AL is to be used specially in SFF

modules mounted on mother boards which have

preinstalled terminations. Removing post amplifier input

terminations will allow for receiver gain control.

All support documentation can be found on Micrel’s web

Features

∑ 2.4V minimum laser compliance voltage

∑ Operation up to 2.5Gbps

∑ Integrated APC circuit

∑ Modulation current up to 85mA

∑ Bias current up to 70mA

∑ Bias, Modulation, and power monitoring

∑ Programmable LOS level

∑ Available in 32-pin (5mm x 5mm) MLF

Applications

∑ Multi-rate burst mode applications: A-PON, B-PON,

G-PON, E-PON, GE-PON

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Typical Application