I hadn't given it any thought. I saw some ad that said 1.5 volts so I assumed that. But, after looking through the datasheet I see an efficiency figure of 73 percent for the adjustable one, so that does imply a need for about 20.5 volts. OTOH, it says the feedback voltage is 1.23V, so I dunno. And I'm certainly not pretending I have any electrical design skills. I'll find out. =)
Bob >________________________________ > From: Bob Camp <[email protected]> >To: Discussion of precise time and frequency measurement <[email protected]> >Sent: Thursday, September 12, 2013 7:54 PM >Subject: Re: [time-nuts] FE-5680A Voltage? > > >Hi > >Looking at the 2496 data sheet - you probably want to put something > 20 volts >into the board if you want a reasonable 15 volts out of it. > >Bob > >On Sep 12, 2013, at 8:01 PM, Bob Stewart <[email protected]> wrote: > >> I just remembered: Someone here or on the Agilent list suggested I buy a >> handful of those LM2596 buckboards a few weeks ago. That one wallwart >> should have enough headroom to give me 15V. >> >> Bob >> >> >> >> >> >>> ________________________________ >>> From: Bob Camp <[email protected]> >>> To: Discussion of precise time and frequency measurement >>> <[email protected]> >>> Sent: Thursday, September 12, 2013 4:52 PM >>> Subject: Re: [time-nuts] FE-5680A Voltage? >>> >>> >>> Hi >>> >>> As I recall, 15 volts is sort of the minimum they recommend on most of the >>> variations of the 5680. The internal regulators will probably be happier >>> with 18 volts than with 14.25. You best bet is indeed a 15 V supply. >>> >>> Bob >>> >>> On Sep 12, 2013, at 11:03 AM, Bob Stewart <[email protected]> wrote: >>> >>>> I decided to order a Rb standard, and I was wondering what the lower limit >>>> on the 15V power requirement is? I have a PSU that will go up to 14.25V >>>> and my next closest is 18V. Should I just get a new 15V PSU before this >>>> gets in? Maybe I can make a quick mod on the big one and take it up to >>>> 15V. >>>> >>>> Bob - AE6RV >>>> _______________________________________________ >>>> 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. >>> >>> _______________________________________________ >>> 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. >>> >>> >>> >> _______________________________________________ >> 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. > >_______________________________________________ >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. > > > _______________________________________________ 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.
