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| 型號： | MIC3001GML TR |
| 廠商： | Micrel Inc |
| 文件頁數： | 1/76頁 |
| 文件大小： | 0K |
| 描述： | IC FOM MANAGEMENT W/CALIBR 24MLF |
| 標準包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 規(guī)程： | SDHj Sonet |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤，24-MLF? |
| 供應商設備封裝： | 24-MLF?（4x4） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | MIC3001GMLTR MIC3001GMLTR-ND |
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MIC3001
FOM Management IC with Internal
Calibration
Consider MIC3003 for New Designs
MLF and MicroLeadFrame are registered trademarks of Amkor Technology
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (
408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
August 2004
M9999-082404-A
hbwhelp@micrel.com or (408) 955-1690
General Description
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
× 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 high-
speed monitoring of received power and critical laser
operating parameters. Data can be reported as either
internally calibrated or externally calibrated.
An interrupt output, power-on hour meter, and data-ready
bits add user friendliness beyond SFF-8472. The interrupt
output and data-ready bits reduce overhead in the host
system. The power-on hour meter logs operating hours
using an internal real-time clock and stores the result in
NVRAM.
Communication with the MIC3001 is via an industry
standard 2-wire serial interface. Nonvolatile memory is
provided for serial ID, configuration, and separate OEM
and
user
scratchpad
spaces.
Two-level
password
protection guards against data corruption.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
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
Drives external low-cost BJT for laser bias
Integrated digital temperature sensor
Temperature compensation of modulation, bias, and
fault levels via NVRAM look-up tables
Direct interface to SY88932, SY88982, SY89307 and
other drivers
NVRAM to support GBIC/SFP serial ID function
User writable EEPROM scratchpad
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, I2C-compatible serial interface
SFP MSA and SFF-8472 compliant
3.0V to 3.6V power supply range
5V-tolerant I/O
4mm × 4mm 24-pin QFN package
Applications
SFF/SFP optical transceivers
SONET/SDH transceivers and transponders
Fibre channel transceivers
10Gbps transceivers
Free space optical communications
Proprietary optical links
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