General Description .......................................................................................................................................................... 1
Features ............................................................................................................................................................................. 1
Absolute Maximum Ratings ........................................................................................................................................... 10
Serial Interface Timing Diagram .................................................................................................................................... 14
Serial Interface Address Maps....................................................................................................................................... 15
Alarms and Warnings Interrupt Source Masking .......................................................................................................... 19
Alarms and Warnings as TXFAULT Source ................................................................................................................. 21
Latching of Alarms and Warnings................................................................................................................................. 21
QGOP Pin Function ...................................................................................................................................................... 21
Temperature ........................................................................................................................................................... 22
TX Power ................................................................................................................................................................ 22
C/ Reading the ADC Result Registers.......................................................................................................................... 25
Power On and Laser Start-Up ...................................................................................................................................... 27
SHDN and TXFIN ......................................................................................................................................................... 29
Temperature Measurement .......................................................................................................................................... 30
Temperature Compensation ......................................................................................................................................... 30
Alarms and Warning Flags ........................................................................................................................................... 32
Control and Status I/O .................................................................................................................................................. 32
System Timing................................................................................................................................................................. 34
Test and Calibration Features ...................................................................................................................................... 37
Serial Port Operation .................................................................................................................................................... 38
Write Protection and Data Security .............................................................................................................................. 39
OEM Mode and User Mode .................................................................................................................................... 39
Temperature High Alarm Threshold ............................................................................................................................. 40
Temperature Low Alarm Threshold .............................................................................................................................. 40
Voltage High Alarm Threshold...................................................................................................................................... 40
Voltage Low Alarm Threshold....................................................................................................................................... 41
Bias Current High Alarm Threshold.............................................................................................................................. 41
Bias Current Low Alarm Threshold............................................................................................................................... 41
TX Optical Power High Alarm Threshold...................................................................................................................... 41
TX Optical Power Low Alarm Threshold....................................................................................................................... 42
RX Optical Power High Alarm Threshold ..................................................................................................................... 42
RX Optical Power Low Alarm Threshold ...................................................................................................................... 42
Temperature High Warning Threshold ......................................................................................................................... 43
Temperature Low Warning Threshold .......................................................................................................................... 43
Voltage High Warning Threshold.................................................................................................................................. 43
Voltage Low Warning Threshold................................................................................................................................... 44
Bias Current High Warning Threshold.......................................................................................................................... 44
Bias Current Low Warning Threshold........................................................................................................................... 44
TX Optical Power High Warning ................................................................................................................................... 44
TX Optical Power Low Warning.................................................................................................................................... 45
RX Optical Power High Warning Threshold ................................................................................................................. 45
RX Optical Power Low Warning Threshold .................................................................................................................. 45
Checksum (CHKSUM) Checksum of bytes 0 - 94 at serial address A2h..................................................................... 45
ADC Result Registers ..................................................................................................................................................... 46
Temperature Result ...................................................................................................................................................... 46
Laser Diode Bias Current ............................................................................................................................................. 46
Transmitted Optical Power ........................................................................................................................................... 47
Received Optical Power ............................................................................................................................................... 47
Control and Status (CNTRL)......................................................................................................................................... 47
Application Select Control Mode (ASCM)..................................................................................................................... 48
Warning Status Register 0 (WARN0) ........................................................................................................................... 51
Warning Status Register 1 (WARN1) ........................................................................................................................... 51
Extended Control and Status (ECNTRL)...................................................................................................................... 52
Power-On Hours (POHh and POHl) ............................................................................................................................. 53
Data Ready Flags (DATARDY) .................................................................................................................................... 53
User Control Register (USRCTL) ................................................................................................................................. 54
LUT Index (LUTINDX) .................................................................................................................................................. 64
Power-On Hour Meter Data (POHDATA) ..................................................................................................................... 70