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Micrel, Inc.
MIC3001
August 2004
3
M9999-082404-A
Contents
General Description ...................................................................................................................................................... 1
Applications ................................................................................................................................................................... 1
Ordering Information .................................................................................................................................................... 2
Pin Configuration .......................................................................................................................................................... 7
Pin Description .............................................................................................................................................................. 7
Absolute Maximum Ratings ......................................................................................................................................... 9
Operating Ratings ......................................................................................................................................................... 9
Electrical Characteristics ............................................................................................................................................. 9
Timing Diagram ........................................................................................................................................................... 14
Address Map................................................................................................................................................................ 15
Block Diagram ............................................................................................................................................................. 17
MIC3000 Capability...................................................................................................................................................... 17
Analog-to-Digital Converter/Signal Monitoring.......................................................................................................... 17
Internal/External Calibration...................................................................................................................................... 19
A/ External Calibration .............................................................................................................................................. 19
Voltage.................................................................................................................................................................. 19
Temperature ......................................................................................................................................................... 19
Bias Current.......................................................................................................................................................... 19
TX Power .............................................................................................................................................................. 19
RX Power.............................................................................................................................................................. 20
B/ Internal Calibration ................................................................................................................................................. 20
C/ ADC Result Registers Reading ............................................................................................................................. 22
RXPOT...................................................................................................................................................................... 22
Laser Diode Bias Control .......................................................................................................................................... 22
Laser Modulation Control.......................................................................................................................................... 23
Power ON and Laser Start-Up .................................................................................................................................. 24
Fault Comparators .................................................................................................................................................... 25
SHDN and TXFIN ..................................................................................................................................................... 26
Temperature Measurement ...................................................................................................................................... 26
Diode Faults .............................................................................................................................................................. 26
Temperature Compensation ..................................................................................................................................... 26
Alarms and Warning Flags........................................................................................................................................ 31
Control and Status I/O .............................................................................................................................................. 31
System Timing............................................................................................................................................................. 32
Warm Resets ............................................................................................................................................................ 35
Power-On Hour Meter............................................................................................................................................... 35
Test and Calibration Features .................................................................................................................................. 35
Serial Port Operation ................................................................................................................................................ 36
Page Writes .............................................................................................................................................................. 36
Acknowledge Polling................................................................................................................................................. 37
Write Protection and Data Security........................................................................................................................... 37
OEM Password..................................................................................................................................................... 37
User Password ..................................................................................................................................................... 37
Detailed Register Descriptions .................................................................................................................................. 38
Alarm Threshold Registers ........................................................................................................................................ 38
Warning Threshold Registers .................................................................................................................................... 43
ADC Result Registers ................................................................................................................................................. 49