
Micrel, Inc.
MIC3001
August 2004
4
M9999-082404-A
Alarm Flags .................................................................................................................................................................. 52
Warning Flags.............................................................................................................................................................. 53
Applications Information ............................................................................................................................................ 69
Controlling Laser Diode Bias ..................................................................................................................................... 69
Choosing CCOMP ........................................................................................................................................................ 70
Measuring Laser Bias Current .................................................................................................................................. 70
Interfacing To Laser Drivers...................................................................................................................................... 70
SY88912 3.3V 3.2Gbps SONET/SDH Laser Driver ................................................................................................. 71
Modulation Current ................................................................................................................................................... 71
SY88932 3.3V 3.2Gbps SONET/SDH Laser Driver ................................................................................................. 71
SY89307 5.0V/ 3.3V 2.5Gbps VCSEL Driver ........................................................................................................... 72
Laser Drivers Programmed via a Sink Current ......................................................................................................... 72
Drivers with Monitor Outputs .................................................................................................................................... 72
Shutdown Output ...................................................................................................................................................... 72
Temperature Sensing ............................................................................................................................................... 73
Remote Sensing ....................................................................................................................................................... 73
Minimizing Errors ........................................................................................................................................................ 73
Self-Heating .............................................................................................................................................................. 73
Series Resistance with External Temperature Sensor ............................................................................................. 74
XPN Filter Capacitor Selection ................................................................................................................................. 74
XPN Layout Considerations...................................................................................................................................... 74
Layout Considerations .............................................................................................................................................. 75
Small Form-Factor Pluggable (SFP) Transceivers............................................................................................... 75
Power Supplies ......................................................................................................................................................... 75
Using the MIC3001 In a 5V System.......................................................................................................................... 75
Package Information ................................................................................................................................................... 76