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SFP Module Reference Design

SFP_SY84782U_R0

Preliminary

Micrel Inc. • 2180 Fortune Drive • Jose, CA 95131 • USA • tel +1 (408) 9440800 • fax + 1 (408) 4741000 • San --http://www.micrel.com

March 19, 2015

Preliminary

General Description

This evaluation board is a complete SFP module as

dened in the SFP MSA document. The design uses

Micrel’s MIC3003 controller, the 1G DFB/FP laser .25

driver SY84782U, and any of the SY84113U iting lim

amplierA picture of the fully loaded board is shown on .

the next page.

Datasheets and support documentation are available on

Micrel’s web site at: . www.micrel.com

Related Support Documentation

MIC3003 datasheet: Fibre optic module controller

featuring digital diagnostic monitoring interface, as per

SFF-8472/SFF-8432, with internal/external calibration

and full laser control with bias and modulation current

compensation for temperature variations using lookup

tables.

84782U datasheet. SY.

SY84113U datasheet. . .

 MIC3003 software user’s guide.

Features

Compliant with SFP MSA

Allows for easy and fast evaluation of Micrel’s chipset

for low power SFP module

Multi-rate operation up to 1.25Gbps

Single, power supply: 2.5V or 3.3V

Extended temperature range: -40°C to +9 5°C

Transmitter FP/DFP Laser Diode Driver –

Operates from a single 2.5V or 3.3V supply

Modulation current up to 80mA

C be DC or AC coupled to the laser an

Small form factor 3mm x 3mm QFN package

Receiver Limiting Post Amplier –

Wide dierential input range (5mVPP 1800tomVPP)

Wide SD de-assert or LOS assert threshold range

3mVPP to 30mVPP with 4dB typical electrical hysteresis

Fast SD / LOS assert/de-assert time

Available in a tiny 3mm x 3mm QFN package

Controller

Extensive temperature range

Alarms and warnings interrupt and TXFAULT masks

Capability to support up to four chips on the serial

interface

Integrated digital temperature sensor

Temperature compensation of modulation, bias, and

fault levels via NVRAM lookup tables

User-writeable EEPROM scratchpad

Option to be used with Cisco security chip

Diagnostic monitoring interface per SFF-8472/8432

Space saving 3mmx3mm package available

(MIC3003GFL)

Product specificaties