MIC3003 Datasheet, PDF (3/75 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003
Contents
Pin Configuration .......................................................................................................................................................... 8
Pin Description .............................................................................................................................................................. 8
Absolute Maximum Ratings ....................................................................................................................................... 10
Operating Ratings ....................................................................................................................................................... 10
Electrical Characteristics ........................................................................................................................................... 10
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
November 2009
3
M9999-111209-C
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