Didier wrote: > >Your original post asked for a reference distribution amplifier. > I did not ask _for_ a reference distribution amplifier.
I asked whether anyone had used the MAX2470/2471 in such a design, specifically in regards to its residual phase noise. > > "Just wondering if anyone has ever tried the MAX2470/2471 VCO buffers as > part of a reference distribution design?" > > Why would it need to cover more than one frequency? > My references are often higher frequency OCXOs ( e.g. 80, 100 MHz ) or multiples thereof ( e.g. 160, 200, 320, 400 MHz ). Distributed within a rack or box, rather than around a building. Instead of designing and building many different discrete narrowband amplifiers with optimum performance for a single frequency, it is sufficient to design fewer amplifiers, having adequate performance in all bands. Brian p.s. Another reason I am interested in this particular part is that the end of many such reference chains terminates in a high speed data converter, needing differential clock drive in the 0-3 dBm range. Other options for this final device in the reference chain include ECL line drivers or baluns; neither has much in the way of reverse isolation, and the ECL parts I've used in years past have a noise floor only in the -140's or so. There are also some newer LVDS/CML buffer parts that might be useful for this end of things, but many of these also lack any detailed phase noise data or reverse isolation specs. **************A Good Credit Score is 700 or Above. See yours in just 2 easy steps! (http://pr.atwola.com/promoclk/100000075x1215195222x1200993641/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=82%26bcd=De cemailfooterNO82) _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
