Microchip Technology MIC3003GML

General Description

The MIC3003 is a fiber optic module controller which enables the implementation ofsophisticated, 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-datapath
functions of an SFP transceiver into a tiny (4mm x 4mm) MLF® package. It also works well as a microcontroller peripheral in transponders or 10Gbps transceivers.

Features

• Extended temperature range
• Alarms and warnings interrupt and TXFAULT masks
• Capability to support up to four MIC3003 on one SMBus
• APC or constant-current laser bias
• Turbo mode for APC loop start-up and shorter laser turn on time
• Supports multiple laser types and bias circuit topologies
• Integrated digital temperature sensor
• Temperature compensation of modulation, bias, bias fault and alarm thresholds via NVRAM look-up tables
• NVRAM to support GBIC/SFP serial ID function
• User writable EEPROM scratchpad
• Reset signal compatible with some new systems requirements
• Diagnostic monitoring interface per SFF-8472
– Monitors and reports critical parameters: temperature, bias current, TX and RX optical power, and supply voltage
– S/W control and monitoring of TXFAULT, RXLOS, RATESELECT, and TXDISABLE
– Internal or external calibration
– EEPOT for adjusting RX power measurement
• Power-on hour meter
• Interrupt capability
• Extensive test and calibration features
• 2-wire SMBus-compatible serial interface
• SFP/SFP+ MSA and SFF-8472 compliant
• 3.0V to 3.6V power supply range
• 5V-tolerant I/O
• Available in (4mm x 4mm) 24-pin MLF® package

Applications
• SFP/SFP+ optical transceivers
• SONET/SDH transceivers and transponders
• Fibre Channel transceivers
• 10Gbps transceivers
• Free space optical communications
• Proprietary optical links