SY88236L_10 Datasheet, PDF (1/19 Pages) Micrel Semiconductor – 2.5Gbps Burst Mode Laser Driver with

SY88236L/AL
2.5Gbps Burst Mode Laser Driver with
Integrated Limiting Amplifier
General Description
Features
The SY88236L is a single supply 3.3V integrated burst
mode laser driver and post amplifier for A-PON, B-PON,
EPON, GE-PON, and G-PON 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
5mV_PP.
The SY88236AL is a version of the SY88236L without 50Ω
termination resistors at the inputs of the driver and the post
amplifier. The SY88236AL is to be used specially in SFF
modules mounted on ONU 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
site at: www.micrel.com.
• 2.4V minimum laser compliance voltage
• Operation up to 2.5Gbps
• Fast burst mode enable/disable delay
• Modulation current up to 85mA
• Bias current up to 70mA
• Infinite bias current hold time between bursts
• Bias, Modulation, and power monitoring
• High input sensitivity post amplifier, 5mV_PP
• Programmable LOS level
• Available in 32-pin (5mm x 5mm) QFN package
Applications
• Multi-rate burst mode applications: A-PON, B-PON,
G-PON, E-PON, GE-PON
___________________________________________________________________________________________________________
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
June 2009
M9999-063009-A
[e-mail] or [phone]