SPFMIT302 Avago Technologies, SPFMIT302 Datasheet

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SPFMIT302

Manufacturer Part Number
SPFMIT302
Description
Plastic Fiber Optic Transmitter For Most
Manufacturer
Avago Technologies
Datasheet
SPF MIT3 02
Plastic Fiber Optic Transmitter for MOST®
Data Sheet
Description
The MOST Tx Plastic Fiber Optic Transmitter is a highly
integrated CMOS IC combined with a High speed LED
designed to transmit up to 25Mbit/sec optical data which
is biphase coded at up to 50Mbaud.
The internal peaking circuit minimizes PWD.
The current through the LED will be setup by an external
resistor connected to VCC. This makes it possible to
control the optical output power of the LED.
MIT3 02
Actual design status:
IC Revision
J
Safety Hints
Applications of new chip technologies leads to increasing optical efficiency and growing and higher
levels of optical performance. We therefore recommend that the current versions of the IEC 825-1 and
EN 60825-1 standards are taken into account right from the outset, i.e. at the equipment development stage, and
that suitable protection facilities are provided.
package type
CAI
device marking
date code, MIT3 02
Features
Excellent solution for converting high speed data from
TTL to Plastic Optical Fiber (POF)
Applications
High speed transmitter up to 50 Mbaud
TTL Data Input (Logic to Light Function)
650 nm for working in a low attenuation range of
PMMA Fiber
High coupled power in1000 micron plastic fiber
Low cost
Optical Transmitter for MOST Systems

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SPFMIT302 Summary of contents

Page 1

SPF MIT3 02 Plastic Fiber Optic Transmitter for MOST® Data Sheet Description The MOST Tx Plastic Fiber Optic Transmitter is a highly integrated CMOS IC combined with a High speed LED designed to transmit up to 25Mbit/sec optical data which ...

Page 2

Maximum Ratings Parameter Symbol Storage Temperature Range T STG Junction Temperature T J Soldering Temperature T S (>2.5 mm from case bottom t≤5s) Power Dissipation P TOT Power Supply Voltage V CCMax Optical Signal Characteristics (22.5 Mbit/s MOST Data, Vcc=4.75 ...

Page 3

Pulse Width Variation (t ) and Average Pulse Width Distortion (t PWV The SPF MIT3 02 generates negative Puls Width Distortion. This means the optical output signal is shortened compared to the electrical input signal. Therefore the parameters t Layer ...

Page 4

AC Electrical Characteristics Parameter Test Conditions Power Supply Rejection Ratio 25 MHz Power Supply Noise Power Up Time Zero - MOST Data Power Down Time MOST Data - Zero Input Rise Time Input Fall Time Typical Dependency of Average Output ...

Page 5

Mechanical Design MIT3 02: CAI package (cavity as interface) Device information (Lot number etc.) is given on CAI backside by laser marking (for details see drawing marking speci- fication). 5 ...

Page 6

Application Circuit: Notes: 1. Place these components as close as possible to their corresponding pins of the FOT. 2. Values can change due to different light output power of the LED. 3. This is just a proposal for the Rext ...

Page 7

Design & Layout rules • The 100nF bypass capacitors of the FOTs must be located as close as possible between the pins Vcc and GND of the FOTs. Use ceramic caps and tantalum caps with low ESR. • Also the ...

Page 8

Top Layer with 180˚ version of the pigtail: Bottom Layer (seen from the top side of the PCB): Other items • The shown circuit for the –3dB attenuation is just a proposal. Also any other circuit which can double the ...

Page 9

... For product information and a complete list of distributors, please go to our web site: Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved. ...

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