The ML4669 series 10BASE-FL to 10BASE-T Converter from Micro Linear.
Currently available from euro-tech stock is the ML4669CQ converter IC from Micro Linear.
Available in 28 Pin PLCC package
Part Number: ML4669CQ
Description: Full Duplex 10BASE-T to 10BASE-FL converter.
Manufacturer: Micro Linear Corporation (Acquired by Sirenza Microdevices)..
Package: 28 Pin PLCC Molded.
Price: Available on application.
Quantity: There are currently 319 pieces available from stock.
A full data sheet for ML4669CQ
is available to download here: 
