MIC3003GML datasheet(28/75 Pages) MICREL

Part #	MIC3003GML

Description	FOM Management IC with Internal Calibration

PDF	75 Pages

Scroll/Zoom	100%

Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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28 / 75 page

Micrel, Inc.

MIC3003

November 2009

M9999-111209-C

hbwhelp@micrel.com or (408) 955-1690

Figure 9. MIC3003 Power-On Timing (OE = 1)

Fault Comparators

In addition to detecting and reporting the events specified

in SFF-8472, the MIC3003 also monitors five fault

conditions: inadequate supply voltage, thermal diode

faults, excessive bias current, excessive transmit power,

and APC op-amp saturation. Comparators monitor these

parameters in order to respond quickly to fault conditions

that could indicate link failure or safety issues, see Figure

10. When a fault is detected, the laser is shut down and

TXFAULT is asserted. Each fault source may be

independently disabled using the FLTMSK register.

FLTMSK is non-volatile, allowing faults to be masked only

during calibration and testing or permanently.

Figure 10. Fault Comparator Logic

MIC3003GML Datasheet(PDF) 28 Page - Micrel Semiconductor