Groups > sci.electronics.design > #452365

Re: why analog electronics

From	"Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com>
Newsgroups	sci.electronics.design
Subject	Re: why analog electronics
Date	2017-03-17 22:02 -0400
Organization	A noiseless patient Spider
Message-ID	<oai4tv$fcc$1@dont-email.me> (permalink)
References	<jea1cc5ealcjf3b9ot1kfsuqkl0lu6me44@4ax.com> <o9vifq$ee1$1@dont-email.me> <5d27f81a-197d-4e16-9355-b106fa65dc8f@googlegroups.com> <oa1cte$v4g$1@dont-email.me>

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Tim Williams wrote:
> "George Herold" <gherold@teachspin.com> wrote in message
> news:5d27f81a-197d-4e16-9355-b106fa65dc8f@googlegroups.com...
>> Grin, hadn't heard that.  My ~10 yro copy of Eagle (4.15) is still
>> running fine (on Win 7), I don't ask it to do much.
>> I've got other software, that now is only kept alive on a
>> virtual XP machine.  (I'm kinda a ludite with software though.)
>
> Not that Eagle has ever "worked" all that well... :^)
>
>
>> Oh and as I've read, storage is best done digital,
>> whether DNA or bits.  Analog makes the measurement,
>> digital records it and passes it on.
>
> Had an idea for a semi-analog storage (e.g. sample-and-hold), namely
> one without drift.  Though it would be slow.  Suppose you use
> back-to-back F-to-V and V-to-F converters, and lock it with a PLL. 
> Interrupt the loop with a regular S&H when you want to update the
> value.
> I suddenly forget why that would work... you'd have to add another
> constraint that the frequency is divided evenly, or a ratio is
> conserved, or something.  Otherwise, drift is drift.  And yes, once
> you're locked to a rational number, you're as good as digital, it's
> just arising from a circuit different from the canonical
> ADC-latch-DAC.

How could the number of bits of storage ever be greater than the number 
of bits in the frequency divider?  I mean, the number of states is the 
number of states.




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Thread

why analog electronics John Larkin <jjlarkinxyxy@highlandtechnology.com> - 2017-03-08 17:11 -0800
  Re: why analog electronics Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-09 10:35 +0200
    Re: why analog electronics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-03-09 07:00 -0700
    Re: why analog electronics bitrex <bitrex@de.lete.earthlink.net> - 2017-03-09 09:30 -0500
    Re: why analog electronics gregz <zekor@comcast.net> - 2017-03-10 08:23 +0000
  Re: why analog electronics bitrex <bitrex@de.lete.earthlink.net> - 2017-03-09 09:25 -0500
  Re: why analog electronics Cursitor Doom <curd@notformail.com> - 2017-03-09 18:29 +0000
  Re: why analog electronics doh@yipee.com - 2017-03-09 13:42 -0800
    Re: why analog electronics Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-09 22:29 +0000
      Re: why analog electronics pcdhobbs@gmail.com - 2017-03-09 14:59 -0800
        Re: why analog electronics Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 08:27 +0000
          Re: why analog electronics Gerhard Hoffmann <ghf@hoffmann-hochfrequenz.de> - 2017-03-10 15:07 +0100
        Re: why analog electronics bitrex <bitrex@de.lete.earthlink.net> - 2017-03-10 12:17 -0500
          Re: why analog electronics bitrex <bitrex@de.lete.earthlink.net> - 2017-03-10 12:18 -0500
      Re: why analog electronics Jeroen Belleman <jeroen@nospam.please> - 2017-03-10 13:30 +0100
      Re: why analog electronics bill.sloman@ieee.org - 2017-03-13 04:06 -0700
    Re: why analog electronics Sylvia Else <sylvia@not.at.this.address> - 2017-03-10 12:50 +1100
      Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-09 20:07 -0600
      Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-09 19:28 -0800
        Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-10 19:05 -0600
      Re: why analog electronics Winfield Hill <hill@rowland.harvard.edu> - 2017-03-10 04:49 -0800
        Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-10 08:08 -0800
          Re: why analog electronics Don Kuenz <g@crcomp.net> - 2017-03-12 02:30 +0000
            Re: why analog electronics John Larkin <jjlarkinxyxy@highlandtechnology.com> - 2017-03-13 10:18 -0700
              Re: why analog electronics Don Kuenz <g@crcomp.net> - 2017-03-13 22:56 +0000
      Re: why analog electronics Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2017-03-11 00:02 +0100
  Re: why analog electronics jurb6006@gmail.com - 2017-03-09 20:50 -0800
    Re: why analog electronics boB@everett.wa - 2017-03-09 22:33 -0800
      Re: why analog electronics krw@notreal.com - 2017-03-10 13:16 -0500
        Re: why analog electronics boB <boB@theresnoplacelikehome.com> - 2017-03-10 12:24 -0800
          Re: why analog electronics krw@notreal.com - 2017-03-10 20:04 -0500
            Re: why analog electronics boB K7IQ <boB@everett.wa> - 2017-03-10 19:41 -0800
  Re: why analog electronics djlocher56@gmail.com - 2017-03-09 22:27 -0800
    Re: why analog electronics krw@notreal.com - 2017-03-10 13:17 -0500
      Re: why analog electronics bulegoge@columbus.rr.com - 2017-03-10 10:51 -0800
        Re: why analog electronics krw@notreal.com - 2017-03-10 20:06 -0500
        Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-10 19:09 -0600
          Re: why analog electronics krw@notreal.com - 2017-03-10 22:15 -0500
    Re: why analog electronics tabbypurr@gmail.com - 2017-03-10 14:12 -0800
      Re: why analog electronics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-03-10 15:30 -0700
        Re: why analog electronics tabbypurr@gmail.com - 2017-03-10 15:04 -0800
  Re: why analog electronics Anthony Stewart <tony.sunnysky@gmail.com> - 2017-03-10 09:38 -0800
    Re: why analog electronics boB@everett.wa - 2017-03-10 11:03 -0800
      Re: why analog electronics krw@notreal.com - 2017-03-10 20:09 -0500
        Re: why analog electronics boB K7IQ <boB@everett.wa> - 2017-03-10 19:50 -0800
  Re: why analog electronics Joerg <news@analogconsultants.com> - 2017-03-10 12:50 -0800
    Re: why analog electronics John Larkin <jjlarkinxyxy@highlandtechnology.com> - 2017-03-10 13:18 -0800
      Re: why analog electronics Joerg <news@analogconsultants.com> - 2017-03-10 13:36 -0800
    Re: why analog electronics George Herold <gherold@teachspin.com> - 2017-03-10 17:01 -0800
      Re: why analog electronics Joerg <news@analogconsultants.com> - 2017-03-11 16:04 -0800
  Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-10 19:08 -0600
    Re: why analog electronics George Herold <gherold@teachspin.com> - 2017-03-10 18:54 -0800
      Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-11 11:45 -0600
        Re: why analog electronics "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2017-03-17 22:02 -0400
          Re: why analog electronics "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-03-18 03:55 -0500
    Re: why analog electronics boB K7IQ <boB@everett.wa> - 2017-03-10 19:56 -0800
  Re: why analog electronics Tim Wescott <tim@seemywebsite.really> - 2017-03-11 12:42 -0600
    Re: why analog electronics Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-11 13:20 -0800
    Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-11 14:51 -0800
      Re: why analog electronics Cursitor Doom <curd@notformail.com> - 2017-03-12 13:28 +0000
        Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-12 10:49 -0700
          Re: why analog electronics Cursitor Doom <curd@notformail.com> - 2017-03-12 21:10 +0000
            Re: why analog electronics krw@notreal.com - 2017-03-12 19:29 -0400
            Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-12 16:49 -0700
              Re: why analog electronics krw@notreal.com - 2017-03-12 21:18 -0400
                Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-12 19:07 -0700
                Re: why analog electronics krw@notreal.com - 2017-03-12 22:43 -0400
                Re: why analog electronics John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-12 19:53 -0700
                Re: why analog electronics krw@notreal.com - 2017-03-12 23:01 -0400
                Re: why analog electronics pcdhobbs@gmail.com - 2017-03-13 07:19 -0700
                Re: why analog electronics krw@notreal.com - 2017-03-13 20:39 -0400
                Re: why analog electronics pcdhobbs@gmail.com - 2017-03-14 04:28 -0700
                Re: why analog electronics krw@notreal.com - 2017-03-14 12:42 -0400
                Re: why analog electronics Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-03-15 09:56 -0400
  Re: why analog electronics George Herold <gherold@teachspin.com> - 2017-03-13 19:59 -0700

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