sy84402l Micrel Semiconductor, sy84402l Datasheet

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sy84402l

Manufacturer Part Number
sy84402l
Description
4.25gbps Vcsel Driver
Manufacturer
Micrel Semiconductor
Datasheet
General Description
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
minimum output swing). VCTRL can also be driven by a
DAC such as those contained in the MIC300X, Micrel’s
FOM controller family.
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.
All datasheets and support documentation can be found
on Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
October 2009
Micro LeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
CC
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
-1.42V (for maximum output swing) to V
CC
(for
®
Features
∑ 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
∑ Fully controllable with Micrel MIC300X controller
∑ Available in ultra-small 10-pin MLF
Applications
∑ Multirate LAN, SAN applications up to 4.25Gbps:
∑ SFF, SFP Modules
∑ Backplane receiver
408
range
package
Ethernet, GbE, FC
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
4.25Gbps VCSEL Driver
SY84402L
hbwhelp@micrel.com
®
(2mm x 2mm)
or (408) 955-1690
M9999-102809-A

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sy84402l Summary of contents

Page 1

... VCTRL can also be driven by a DAC such as those contained in the MIC300X, Micrel’s FOM controller family. The SY84402L provides a VT output for use 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 ...

Page 2

... Range MLF-10 Industrial 402L with Pb-Free bar-line indicator ® 10-Pin MLF (2mm x 2mm) (MLF-10) -1.42V for maximum swing CC OUT /OUT Package Marking Lead Finish Pb-Free NiPdAu hbwhelp@micrel.com SY84402L for minimum CC M9999-102909-A or (408) 955-1690 ...

Page 3

... 800 100 V –1.165 –1.945 100 -1. –1 –1.42 CC hbwhelp@micrel.com SY84402L Max Units 50 mA –0.895 V –1.695 –0.880 V –1.625 V 1700 Ω uses a JB M9999-102909-A ...

Page 4

... Condition NRZ Data OUT, /OUT, Note 6 0.8 1 1.2 1.4 4 –2V unless otherwise noted. CC Min Typ 4. Typical Modulation Current in 50Ω Load 0.2 0.4 0.6 0.8 1 1.2 VCC - VCTRL (V) hbwhelp@micrel.com SY84402L Max Units Gbps 80 ps 1.4 M9999-102909-A or (408) 955-1690 ...

Page 5

... VCSEL is determined by the ratio between the output October 2009 voltage swing and the total load including VCSEL’s equivalent resistance and any damping series resistor. The output signal amplitude is determined by the voltage applied at pin 10 (VCTRL) which should be within the range of VCC-1.42 to VCC. 5 hbwhelp@micrel.com SY84402L M9999-102909-A or (408) 955-1690 ...

Page 6

... Input and Output Stages Figure 1a. Simplified Driver Input Stage Interfacing Driver Input to Different Logic Drivers Figure 2a. AC-Coupled Input to LVPECL Figure 2c. AC-Coupled Input to CML October 2009 Figure 1b. Simplified Driver Output Stage Figure 2b. DC-Coupled Input to LVPECL Figure 2d. DC-Coupled Input to CML 6 hbwhelp@micrel.com SY84402L M9999-102909-A or (408) 955-1690 ...

Page 7

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully October 2009 10-Pin EPAD MicroLeadFrame indemnify Micrel for any damages resulting from such use or sale. © 2009 Micrel, Incorporated. 7 ® (MLF-10) hbwhelp@micrel.com SY84402L M9999-102909-A or (408) 955-1690 ...

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