Laser Diode Bias Control .......................................................................................................................................... 22
Laser Modulation Control .......................................................................................................................................... 23
Power ON and Laser Start-Up .................................................................................................................................. 24
SHDN and TXFIN ..................................................................................................................................................... 26
Temperature Measurement ...................................................................................................................................... 26
Temperature Compensation ..................................................................................................................................... 26
Alarms and Warning Flags........................................................................................................................................ 31
Control and Status I/O .............................................................................................................................................. 31
Power-On Hour Meter ............................................................................................................................................... 35
Test and Calibration Features .................................................................................................................................. 35
Serial Port Operation ................................................................................................................................................ 36
Write Protection and Data Security ........................................................................................................................... 37
Measuring Laser Bias Current .................................................................................................................................. 70
Interfacing To Laser Drivers...................................................................................................................................... 70
Modulation Current ................................................................................................................................................... 71
Laser Drivers Programmed via a Sink Current ......................................................................................................... 72
Drivers with Monitor Outputs .................................................................................................................................... 72
Temperature Sensing ............................................................................................................................................... 73
Small Form-Factor Pluggable (SFP) Transceivers...............................................................................................
75
Power Supplies ......................................................................................................................................................... 75
Using the MIC3001 In a 5V System .......................................................................................................................... 75
Figure 6. Transmitter Configurations Supported by MIC3001 ......................................................................................................... 23
Figure 7. V
MOD
Configured as Voltage Output with Gain ................................................................................................................. 23
Figure 12. Examples of LUTOFF Operation ..................................................................................................................................... 29
Figure 13. Temperature Compensation Examples ........................................................................................................................... 30
Figure 14. Control and Status I/O Logic ........................................................................................................................................... 32
Figure 16. Initialization Timing with TXDISABLE Asserted .............................................................................................................. 32
Figure 17. Initialization Timing with TXDISABLE Not Asserted ........................................................................................................ 33
Figure 20. Successfully Clearing a Fault Condition .......................................................................................................................... 34
Figure 21. Unsuccessful Attempt to Clear a Fault ............................................................................................................................ 34
Figure 26. Example APC Circuit for Common-Cathode TOSA ........................................................................................................ 69
Figure 27. Example APC Circuit for Common Anode TOSA ............................................................................................................ 69
Figure 28. Slew Rate vs. C
COMP
Value ............................................................................................................................................. 70
Figure 31. Controlling the SY88932 Modulation Current .................................................................................................................. 71
Figure 32. Controlling the SY89307 Modulation Current .................................................................................................................. 72
Figure 33. Controlling the Modulation Current via a Sink Current ................................................................................................... 72
Figure 35. Guard Traces and Kelvin Return for Remote Thermal Diode......................................................................................... 75
Figure 36. Typical SFP Control and Status I/O Signal Routing (not to scale) ................................................................................. 75
Figure 37. Power Supply Routing and Bypassing ............................................................................................................................ 75
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