Datasheet Microchip MIC3001GML — Datenblatt

MIC3001
FOM Management IC with Internal
Calibration
Consider MIC3003 for New Designs General Description Features The MIC3001 enables the implementation of sophisticated,
hot-pluggable fiber optic transceivers with intelligent laser
control and an internally calibrated digital diagnostic
monitoring interface per SFF-8472. It essentially integrates
all non-data path functions of an SFP transceiver into a
tiny (4mm Г— 4mm) QFN package.
A highly-configurable automatic power control (APC)
circuit controls laser bias. Bias and modulation are
temperature compensated using dual DACs, an on-chip
temperature sensor, and NVRAM look-up tables. A
programmable internal feedback resistor provides
unprecedented dynamic range for APC. Controlled laser
turn-on facilitates hot plugging.
An analog-to-digital converter converts the measured
temperature, voltage, bias current, transmit power, and
received power from analog to digital. An EEPOT provides
front-end adjustment of RX power. Each parameter is
compared against user-programmed warning and alarm
thresholds. Analog comparators and DACs provide highspeed monitoring of received power and critical laser
operating parameters. Data can be reported as either …