Micrel, Inc.
MIC3003GFL
Contents
General Description .......................................................................................................................................................... 1
Features ............................................................................................................................................................................. 1
Pin Configuration .............................................................................................................................................................. 8
Pin Configuration .............................................................................................................................................................. 8
Pin Description (MIC3003GFL only) ................................................................................................................................ 8
Absolute Maximum Ratings ........................................................................................................................................... 10
Operating Ratings ........................................................................................................................................................... 10
Electrical Characteristics ............................................................................................................................................... 10
Electrical Characteristics ............................................................................................................................................... 12
Electrical Characteristics ............................................................................................................................................... 13
Serial Interface Timing Diagram .................................................................................................................................... 14
Serial Interface Address Maps....................................................................................................................................... 15
Block Diagram ................................................................................................................................................................. 18
Analog-to-Digital Converter/Signal Monitoring............................................................................................................ 18
Alarms and Warnings Interrupt Source Masking .......................................................................................................... 19
Alarms and Warnings as TXFAULT Source ................................................................................................................. 21
Latching of Alarms and Warnings................................................................................................................................. 21
SMBus Multipart Support.............................................................................................................................................. 21
QGOP Pin Function ...................................................................................................................................................... 21
Calibration Modes ........................................................................................................................................................... 22
A/ External Calibration .................................................................................................................................................. 22
Voltage.................................................................................................................................................................... 22
Temperature ........................................................................................................................................................... 22
Bias Current............................................................................................................................................................ 22
TX Power ................................................................................................................................................................ 22
RX Power................................................................................................................................................................ 23
B/ Internal Calibration ................................................................................................................................................... 23
Computing Internal Calibration Results .................................................................................................................. 23
C/ Reading the ADC Result Registers.......................................................................................................................... 25
RXPOT.......................................................................................................................................................................... 25
Laser Diode Bias Control.............................................................................................................................................. 25
Laser Modulation Control.............................................................................................................................................. 26
Power On and Laser Start-Up ...................................................................................................................................... 27
Fault Comparators ........................................................................................................................................................ 28
SHDN and TXFIN ......................................................................................................................................................... 29
Temperature Measurement .......................................................................................................................................... 30
Diode Faults.................................................................................................................................................................. 30
Temperature Compensation ......................................................................................................................................... 30
Alarms and Warning Flags ........................................................................................................................................... 32
Control and Status I/O .................................................................................................................................................. 32
System Timing................................................................................................................................................................. 34
Warm Resets ................................................................................................................................................................ 36
Power-On Hour Meter................................................................................................................................................... 36
Test and Calibration Features ...................................................................................................................................... 37
Serial Port Operation .................................................................................................................................................... 38
Block Writes .................................................................................................................................................................. 38
Acknowledge Polling..................................................................................................................................................... 39
Write Protection and Data Security .............................................................................................................................. 39
OEM Password....................................................................................................................................................... 39
OEM Mode and User Mode .................................................................................................................................... 39
Detailed Register Descriptions ...................................................................................................................................... 40
Alarm Threshold Registers ............................................................................................................................................ 40
Temperature High Alarm Threshold ............................................................................................................................. 40
Temperature Low Alarm Threshold .............................................................................................................................. 40
Voltage High Alarm Threshold...................................................................................................................................... 40
D[7] read/write
................................................................................................................................................................... 40
July 2010
3
M9999-072910-A
hbwhelp@micrel.com
or (408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
