Absolute Maximum Ratings ............................................................................................................................................ 9
Temperature Reading Compensation ........................................................................................................................... 19
Alarms and Warnings Interrupt Source Masking .......................................................................................................... 20
Alarms and Warnings as TXFAULT Source ................................................................................................................. 21
Alarms and Warnings Latch .......................................................................................................................................... 21
SMBus Multipart Support .............................................................................................................................................. 21
Voltage .................................................................................................................................................................... 22
Temperature ........................................................................................................................................................... 22
Bias Current ............................................................................................................................................................ 22
TX Power ................................................................................................................................................................ 22
RX Power ................................................................................................................................................................ 23
Temperature Offset................................................................................................................................................. 25
C/ ADC Result Registers Reading .......................................................................................................................... 25
Laser Diode Bias Control .............................................................................................................................................. 25
Laser Modulation Control .............................................................................................................................................. 26
Power ON and Laser Start-Up ...................................................................................................................................... 27
SHDN and TXFIN .......................................................................................................................................................... 29
Temperature Measurement........................................................................................................................................... 29
Temperature Compensation ......................................................................................................................................... 29
Alarms and Warning Flags ............................................................................................................................................ 32
Control and Status I/O ................................................................................................................................................... 32
System Timing............................................................................................................................................................... 34
Power-On Hour Meter ................................................................................................................................................... 36
Test and Calibration Features ....................................................................................................................................... 37
Serial Port Operation ..................................................................................................................................................... 38
Write Protection and Data Security .................................................................................................................................. 39
User Password......................................................................................................................................................... 39
ADC Result Registers ................................................................................................................................................... 45
USER Password Setting (USRPWSET) ....................................................................................................................... 50
USER Password (USRPW)........................................................................................................................................... 51
Data Ready Flags (DATARDY) ..................................................................................................................................... 51
USER Control Register (USRCTL) ............................................................................................................................... 52
APC Setpoint x ............................................................................................................................................................. 54
Modulation Setpoint x ................................................................................................................................................... 54
Power-On Hour Meter Data (POHDATA) ..................................................................................................................... 62
Manufacturer ID Register .............................................................................................................................................. 64
Device ID Register ....................................................................................................................................................... 64
Package Information ..................................................................................................................................................... 65
Figure 13. Control and Status I/O Logic ........................................................................................................................ 33
Figure 19. Successfully Clearing a Fault Condition ..................................................................................................... 36
Figure 20. Unsuccessful Attempt to Clear a Fault ....................................................................................................... 36