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S7011
1.0/1.25 GBPS VCSEL DRIVER
May 10, 1999
S7011
1.0/1.25 GBPS VCSEL DRIVER
PRODUCT BRIEF 1.0
FEATURES
1.0/1.25 Gbps data rate
Optical tail compensation
VCSELTracTM drive technology
Output current eye safety monitor
PECL/LVDS compatible input
Open loop/Closed loop operation
Cost effective programmable configuration
interface
Single +3.3 volt supply
20 Pin TSSOP package
APPLICATIONS
Gigabit Ethernet
Fibre Channel
Fiber optic data links
High speed optical communications
GENERAL DESCRIPTION
The S7011 is the industry's first and most highly in-
tegrated submicron CMOS Vertical Cavity Surface
Emitting Laser (VCSEL) driver circuit for Gigabit
Ethernet/Fibre Channel applications and 1.25 Gbps
fiber optic data links. The S7011 operates from a
single +3.3V supply, dissipates less than 100mW of
power for gigabit operation, and accepts, with proper
input termination, either differential LVDS or PECL
input levels. Engineered to provide the industry's
highest level of integration for a laser driver, the
S7011 is also the first solution to offer an output
waveform that is tailored to the characteristics of
VCSELs including automatic optical tail compensa-
tion, thus optimizing overall system performance.
The S7011 is the first VCSEL driver design to incor-
porate a microcontroller interface on-chip that sup-
ports independent or multiple device control. This
interface provides device operation status as well as
external processor control of all chip functions. The
microcontroller interface also permits automation of
the manufacturing process and allows for easy and
re-workable device configuration, thereby reducing
the cost and increasing the ease of manufacture.
This solution accommodates both open and closed-
loop architectures by offering programmable IMOD
temperature compensation and by monitoring the av-
erage drive current through the laser diode to insure
eye safety conditions. As a result of this configura-
tion, the S7011 offers a compelling combination of
flexibility, low power, smaller form factor, and cost
reduction. See Figure 1 for a typical Fibre Channel/
Gigabit Ethernet application and Figure 2 for an
S7011 block diagram.
Figure 1. Typical Fibre Channel/Gigabit Ethernet Application
TIA
S7011
LASER
DRIVER
POST
AMP
S2060/
S2070
Transceiver
PECL
PECL
PROTOCOL
Iin
Photodiode
RECEIVER DETECTOR
Iout
Laser
3
S7011
1.0/1.25 GBPS VCSEL DRIVER
May 10, 1999
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Prefix Device Package
AMCC is a registered trademark of Applied Micro Circuits Corporation.
Copyright 1999 Applied Micro Circuits Corporation
AMCC reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and
advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied
on is current.
AMCC does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey
any license under its patent rights nor the rights of others.
AMCC reserves the right to ship devices of higher grade in place of those of lower grade.
AMCC SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR
USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.
Applied Micro Circuits Corporation 6290 Sequence Dr., San Diego, CA 92121
Phone: (619) 450-9333 (800) 755-2622 Fax: (619) 450-9885
http://www.amcc.com
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Ordering Information
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