SY84402L Datasheet, PDF (1/7 Pages) Micrel Semiconductor – 4.25Gbps VCSEL Driver

SY84402L
4.25Gbps VCSEL Driver
General Description
Features
The SY84402L is a 3.3V VCSEL driver for applications up
to 4.25Gbps. The driver comes in a 2mm x 2mm MLF^®
package which makes it less than half the size of any other
driver operating at that rate. The variable output swing on
the SY84402L makes it ideal for use as a VCSEL driver as
well as a backplane driver/receiver.
The operational range of the SY84402L control input is
from V_CC-1.42V (for maximum output swing) to V_CC (for
minimum output swing). VCTRL can also be driven by a
DAC such as those contained in the MIC300X, Micrel’s
FOM controller family.
• 3.3V power supply
• Operates from 100Mps up to 4.25Gbps
• 100k-compatible PECL/ECL I/O
• Guaranteed operation over –40°C to +85°C temperature
range
• Fully controllable with Micrel MIC300X controller
• Available in ultra-small 10-pin MLF^® (2mm x 2mm)
package
Applications
The SY84402L provides a VT output for use as a DC bias
for AC-coupling to the device. The input termination
network can easily be modified to handle a DC-coupled
PECL output to save board space by simply tying the VT
terminal to ground through a 50 Ohm resistor. The VT pin
should be used only as a bias for this device as its current
sink/source capability is limited.
• Multirate LAN, SAN applications up to 4.25Gbps:
Ethernet, GbE, FC
• SFF, SFP Modules
• Backplane receiver
All datasheets and support documentation can be found
on Micrel’s web site at: www.micrel.com.
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Typical Application
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
October 2009
M9999-102809-A
[e-mail] or [phone]