Instrukcja obsługi Microchip SY88992L

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SY88992L

3.3V, 4.25Gbps VCSEL Driver

January 2006

M9999 011306--A

hbwhelp@micrel.com or (408) 955-1690

General Description

The SY88992L is a single supply 3.3V, low power

consumption, smallform factor VCSEL driver ideal for -

use in datacom applictions; Ethernet, GbE (Gigabit a

Ethernet), and FC (Fibre Chanel) applications that n

operate from 100Mbps up to 4.25Gbps. The

modulation curent is set by applying an external r

voltage at the IM_SET pin. The driver features an

adjustable peaking option with variable amplitude and

duration to improve VCSEL edge response. The driver

can deliver modulation current up to 25mA and a

peaking curent up to 35% of the modulation current. r

This device is intended to be used with Micrel’s

MIC3001 Optical Transceiver Managment IC, which e

allows for both modulation and bias current control and

monitoring, APC (Automatic Power Control), and

temperature compensation.

All support documentation can be found on Micrel’s

web site at: www.micrel.com.

Features

• Up to 25mA modulation current

• Operates from 100Mbps to 4.25Gbps

•Peaking with variable duration option for better

VCSEL re sponse

• Dual peaking, on the rise and falling edges

• Peaking current proportional to modulation current

• Easy modulation current setting

• Fully controllable with Micrel MIC3001

• Small (3mm x 3mm) 16 pin QFN package

Applications

•Multirate LAN, SAN applications up to 4.25Gbps:

Ethernet, GbE, FC

• SFF, SFP Modules

Markets

• Datacom

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Typical Application

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