MIC3002 FOM Management IC with Internal Calibration General Description Features The MIC3002 is a fiber optic module controller which enables Extensive temperature range the implementation of sophisticated, hot-pluggable fiber optic Alarms and Warnings interrupt and TXFAULT masks transceivers with intelligent laser control and an internally Capability to support up to four chips on the serial calibrated Digital Diagnostic Monitoring Interface per SFF- interface 8472. It essentially integrates all non-datapath functions of an LUT to compensate for chip-FOM case temperature SFP transceiver into a tiny (4mm x 4mm) QFN package. It difference also works well as a microcontroller peripheral in APC or constant-current laser bias transponders or 10Gbps transceivers. Turbo mode for APC loop start-up and shorter laser turn A highly configurable automatic power control (APC) circuit on time controls laser bias. Bias and modulation are temperature Supports multiple laser types and bias circuit topologies compensated using dual DACs, an on-chip temperature sensor, and NVRAM look-up tables. A programmable Integrated digital temperature sensor internal feedback resistor provides a wide dynamic range for Temperature compensation of modulation, bias, and the APC. Controlled laser turn-on facilitates hot plugging. fault levels via NVRAM look-up tables An analog-to-digital converter converts the measured NVRAM to support GBIC/SFP serial ID function temperature, voltage, bias current, transmit power, and User writable EEPROM scratchpad received power from analog to digital. An EEPOT provides Diagnostic monitoring interface per SFF-8472 front-end adjustment of RX power. Each parameter is Monitors and reports critical parameters: compared against user-programmed warning and alarm temperature, bias current, TX and RX optical power, thresholds. Analog comparators and DACs provide high- and supply voltage speed monitoring of received power and critical laser S/W control and monitoring of TXFAULT, RXLOS, operating parameters. Data can be reported as either RATESELECT, and TXDISABLE internally calibrated or externally calibrated. Internal or external calibration An interrupt output, power-on hour meter, and data-ready EEPOT for adjusting RX power measurement bits add user friendliness beyond SFF-8472. The interrupt output and data-ready bits reduce overhead in the host Power-on hour meter system. The power-on hour meter logs operating hours using Interrupt capability an internal real-time clock and stores the result in NVRAM. Extensive test and calibration features In addition to the features listed above which are already 2-wire SMBus-compatible serial interface implemented in the previous controller MIC3001, the SFP/SFP+ MSA and SFF-8472 compliant MIC3002 features an extensive temperature range, options 3.0V to 3.6V power supply range to mask alarms and warnings interrupt and TXFAULT, and 5V-tolerant I/O ability to support up to four chips with the same address on the serial interface. Available in (4mm x 4mm) 24-pin QFN package Communication with the MIC3002 is via an industry standard Applications 2-wire serial interface. Nonvolatile memory is provided for serial ID, configuration, and separate OEM and user SFP/SFP+ optical transceivers scratchpad spaces. Two-level password protection guards SONET/SDH transceivers and transponders against data corruption. Fibre Channel transceivers 10Gbps transceivers Free space optical communications Proprietary optical links Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC3002 Ordering Information Part Number Package Type Junction Temp. Range Package Marking Lead Finish MIC3002BML 24-pin QFN 45C to +105C 3002 Sn-Pb (1) MIC3002BMLTR 24-pin QFN 45C to +105C 3002 Sn-Pb MIC3002GML 24-pin QFN 45C to +105C 3002 Pb-Free with Pb-Free bar-line indicator NiPdAu (1) MIC3002GMLTR 24-pin QFN 45C to +105C 3002 Pb-Free with Pb-Free bar-line indicator NiPdAu 1. Note: 2. Tape and Reel. 2 M9999-073107-B July 2007 hbwhelp micrel.com or (408) 955-1690