R
Rich Grise
Guest
Jim Thompson wrote:
Thanks,
Rich
injured pulse onto the ambulance?
Thanks,
Rich
M
Michael A. Terrell
Guest
m II wrote:
I had that colonoscopy several years ago. I slept through it.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
I had that colonoscopy several years ago. I slept through it.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
M
Michael A. Terrell
Guest
John Larkin wrote:
It was in the 40s here the other night.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
It was in the 40s here the other night.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
K
krw@att.bizzzzzzzzzzzz
Guest
On Fri, 11 Mar 2011 17:43:29 -0500, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:
finished blooming.
<mike.terrell@earthlink.net> wrote:
Spring ahead, tomorrow night.
We had a little frost this morning. The Cherry and Pear trees have already
finished blooming.
J
John Larkin
Guest
On Fri, 11 Mar 2011 19:48:07 -0500, Jamie
<jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
John
<jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
Yeah, he might understand how that works.
John
J
Jamie
Guest
John Larkin wrote:
Jamie
Jamie
J
Jim Thompson
Guest
On Thu, 10 Mar 2011 19:05:51 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Remember: Once you go over the hill, you pick up speed
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
In spite of my analog background I like the precision and stability of
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat || E-mail Icon at http://www.analog-innovations.com | 1962 |
Remember: Once you go over the hill, you pick up speed
A
Artemus
Guest
"Jim Thompson" <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote in message
news:tikln6p8cpljuqus1aihluvvgahphr3trh@4ax.com...
a pulse stretcher in 10 seconds, stretch a pulse to 10 seconds,
or stretch a 10 second pulse to something even longer. ;-)
Art
news:tikln6p8cpljuqus1aihluvvgahphr3trh@4ax.com...
Ahh! That clears that up. I wasn't sure if you wanted to buildOn Thu, 10 Mar 2011 19:05:51 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
I need a 10 SECOND pulse stretcher!
I vaguely recall doing that using a counter, but can't recall the
details.
...Jim Thompson
In spite of my analog background I like the precision and stability of
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
a pulse stretcher in 10 seconds, stretch a pulse to 10 seconds,
or stretch a 10 second pulse to something even longer. ;-)
Art
M
m II
Guest
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Hash: SHA1
"Jim Thompson" wrote in message
news:tikln6p8cpljuqus1aihluvvgahphr3trh@4ax.com...
All this time I thought a 555 was an analogue circuit.
mike
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Hash: SHA1
"Jim Thompson" wrote in message
news:tikln6p8cpljuqus1aihluvvgahphr3trh@4ax.com...
In spite of my analog background I like the precision and stability of
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
All this time I thought a 555 was an analogue circuit.
mike
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J
John Fields
Guest
On Fri, 11 Mar 2011 18:57:46 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
even better!
---
JF
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
Excellent choice, and having the bastards grit their teeth makes itOn Thu, 10 Mar 2011 19:05:51 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
I need a 10 SECOND pulse stretcher!
I vaguely recall doing that using a counter, but can't recall the
details.
...Jim Thompson
In spite of my analog background I like the precision and stability of
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
---
even better!
---
JF
M
Michael A. Terrell
Guest
"krw@att.bizzzzzzzzzzzz" wrote:
It was 34 in Ocala this morning.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
It was 34 in Ocala this morning.
--
You can't fix stupid. You can't even put a Band-Aid on it, because it's
Teflon coated.
J
John Larkin
Guest
On Sat, 12 Mar 2011 06:15:24 -0600, John Fields
<jfields@austininstruments.com> wrote:
John
<jfields@austininstruments.com> wrote:
555, hilarious! Sounds like digital scared him off again.On Fri, 11 Mar 2011 18:57:46 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
On Thu, 10 Mar 2011 19:05:51 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
I need a 10 SECOND pulse stretcher!
I vaguely recall doing that using a counter, but can't recall the
details.
...Jim Thompson
In spite of my analog background I like the precision and stability of
digital, but I've fallen back to complete simplicity, a single 555
Timer... that ought to make Slowman and Jerkin happy ;-)
(I found some high quality 2.2uF film capacitors in my junk
...Jim Thompson
---
Excellent choice, and having the bastards grit their teeth makes it
even better!
---
JF
John
F
flipper
Guest
On Sun, 05 Jun 2011 17:39:24 -0700, Rich Grise
<richg@example.net.invalid> wrote:
It's one thing to have an 'opinion' on the merits of circumcision but
that comic is blatantly bigoted flaming propaganda replete with blonde
haired blue eyed 'Aryan hero' fighting the 'monster Jew'.
You could stick that thing in a Holocaust museum and no one would
question it's presence there.
Egypt and they were neither Jewish nor Muslim, seeing as how it was to
be at least 2,500 years before Muhammad was even so much as a gleam in
his daddy's eye.
The Jews are just one of a number of peoples who have engaged in the
practice and they have never 'imposed' it on anyone else.
According to the World Health Organization the current ratio in the
U.S. is on the order of 75% being circumcised and, again, has nothing
to do with 'Jews' and 'Muslims' seeing as how the two groups,
combined, are roughly 3% of the population.
<richg@example.net.invalid> wrote:
What a crock.
It's one thing to have an 'opinion' on the merits of circumcision but
that comic is blatantly bigoted flaming propaganda replete with blonde
haired blue eyed 'Aryan hero' fighting the 'monster Jew'.
You could stick that thing in a Holocaust museum and no one would
question it's presence there.
Well, Mr. Bigot, circumcision goes back to at least 23'd century BC
Egypt and they were neither Jewish nor Muslim, seeing as how it was to
be at least 2,500 years before Muhammad was even so much as a gleam in
his daddy's eye.
The Jews are just one of a number of peoples who have engaged in the
practice and they have never 'imposed' it on anyone else.
According to the World Health Organization the current ratio in the
U.S. is on the order of 75% being circumcised and, again, has nothing
to do with 'Jews' and 'Muslims' seeing as how the two groups,
combined, are roughly 3% of the population.
T
Tom Biasi
Guest
On 6/3/2012 3:26 PM, Jim Thompson wrote:
9mm and 380's are not considered "such firepower".
In a self defense situation you really don't know what would suffice.
Practice and training so that you do not hesitate to respond is far
better than just a big gun however.
Good luck and keep shooting.
Jim,
9mm and 380's are not considered "such firepower".
In a self defense situation you really don't know what would suffice.
Practice and training so that you do not hesitate to respond is far
better than just a big gun however.
Good luck and keep shooting.
J
Jim Thompson
Guest
On Tue, 16 Oct 2012 01:16:34 GMT, nico@puntnl.niks (Nico Coesel)
wrote:
Personally I think lock detectors are a farce. But I can certainly
add it in.
As for "design tools for calculating the loop filter components", come
on Nico, that's math, you don't need a "tool"
See...
http://www.analog-innovations.com/SED/PhaseLockedLoopAnalysis.pdf
for a primer. Adjust analysis for edge-detecting PFD "gain".
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
wrote:
Funny. I have a HC7046 schematic right here in front of me.
Personally I think lock detectors are a farce. But I can certainly
add it in.
As for "design tools for calculating the loop filter components", come
on Nico, that's math, you don't need a "tool"
See...
http://www.analog-innovations.com/SED/PhaseLockedLoopAnalysis.pdf
for a primer. Adjust analysis for edge-detecting PFD "gain".
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat || E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
T
Tom Del Rosso
Guest
Jim Thompson wrote:
create a walking phase shift.
You did need to match the gates. If they were simmed as discrete 7400's
then you had to take the 4 on the left from one package.
==========quote==========
Newsgroups:
alt.binaries.schematics.electronic,sci.electronics.cad,sci.electronics.design,sci.electronics.misc
Sent: Monday, August 27, 2001 10:26 PM
Subject: Re: Help an Analog Guy with a Digital Problem
|> The internal feedback disabled the pulse too soon. The resulting
|> pulse width at the final latch was about 1/2 of what it is with
|> feedback from the output (~2.5nS vs 5nS).
|
|Ok. So was your testing of the last circuit sucessful under full load?
|
You bet...you're now in a product...E-Mail for details.
=========================
--
Reply in group, but if emailing add one more
zero, and remove the last word.
It passed your sim with slightly different frequencies at each input to
create a walking phase shift.
You did need to match the gates. If they were simmed as discrete 7400's
then you had to take the 4 on the left from one package.
I know. That's why I was surprised it worked with 8 as quoted:
==========quote==========
Newsgroups:
alt.binaries.schematics.electronic,sci.electronics.cad,sci.electronics.design,sci.electronics.misc
Sent: Monday, August 27, 2001 10:26 PM
Subject: Re: Help an Analog Guy with a Digital Problem
|> The internal feedback disabled the pulse too soon. The resulting
|> pulse width at the final latch was about 1/2 of what it is with
|> feedback from the output (~2.5nS vs 5nS).
|
|Ok. So was your testing of the last circuit sucessful under full load?
|
You bet...you're now in a product...E-Mail for details.
=========================
--
Reply in group, but if emailing add one more
zero, and remove the last word.
J
Jim Thompson
Guest
On Fri, 19 Oct 2012 08:09:38 -0400, "Tom Del Rosso"
<td_03@verizon.net.invalid> wrote:
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
<td_03@verizon.net.invalid> wrote:
Thanks, Tom! I'll have to try that. Does it have deadband?
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat || E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
J
Jan Panteltje
Guest
On a sunny day (Fri, 19 Oct 2012 08:59:28 -0400) it happened Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote in
<50814EB0.FE38E8B7@electrooptical.net>:
See my posting in s.e.d today with subject:
GPS frequency counter + PLL PIC based
<pcdhSpamMeSenseless@electrooptical.net> wrote in
<50814EB0.FE38E8B7@electrooptical.net>:
mm
See my posting in s.e.d today with subject:
GPS frequency counter + PLL PIC based
J
John Larkin
Guest
On Fri, 19 Oct 2012 15:02:51 -0700 (PDT), Bill Sloman
<bill.sloman@ieee.org> wrote:
MSB, they have a full clock of p-p jitter. DAC'd and filtered, into a
comparator, it's more complex, but much below the LPF cutoff, you're
basically quantized to the DAC resolution. Jitter like 1 part in
20,000 is common for a 16-bit system.
The real nuisance in a DDS is the damned lowpass filter.
VCOs can be a lot better, and VCXOs hugely better.
--
John Larkin Highland Technology, Inc
jlarkin at highlandtechnology dot com
http://www.highlandtechnology.com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom laser drivers and controllers
Photonics and fiberoptic TTL data links
VME thermocouple, LVDT, synchro acquisition and simulation
<bill.sloman@ieee.org> wrote:
DDSs suck for jitter. Unfiltered, looking at the phase accumulator
MSB, they have a full clock of p-p jitter. DAC'd and filtered, into a
comparator, it's more complex, but much below the LPF cutoff, you're
basically quantized to the DAC resolution. Jitter like 1 part in
20,000 is common for a 16-bit system.
The real nuisance in a DDS is the damned lowpass filter.
VCOs can be a lot better, and VCXOs hugely better.
--
John Larkin Highland Technology, Inc
jlarkin at highlandtechnology dot com
http://www.highlandtechnology.com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom laser drivers and controllers
Photonics and fiberoptic TTL data links
VME thermocouple, LVDT, synchro acquisition and simulation
B
Bill Sloman
Guest
On Oct 19, 11:59 pm, Phil Hobbs
<pcdhSpamMeSensel...@electrooptical.net> wrote:
have a lower jitter than you'd get from most VCOs, and you've got a
whole lot better idea of the frequency you are synthesising.
DAC do make sense - as soon as you want a non-linear or - worse - a
non-monotonic relationship between input and output. For phase-locked
loops this happens quite often - as Floyd M Gardener pointed out, the
sort of phase-sensitive detector that gives you the best lock doesn't
necessarily get you into lock as fast as you'd like.
The DDS approach comes into its own when you want several sine wave
sources at once - for detecting at twice the frequency or both in-
phase and in quadrature. The analogue techniques for doing this are no
less messy and generally give you a poorer quality sine wave.
available. And the tuning range available is rarely impressive.
Varactors have a roughly hyperbolic capacitance to voltage
relationship, so getting the tuning loop critically damped isn't going
to be all that easy.
I did suggest (here) that we get together over a coffee a few years
ago but he didn't like the idea.
Oz has been fine so far, but we're not yet entirely out of jet-lag.
We've been keeping a low profile. I did apply for two jobs yesterday,
but that was more to get my name on the books than in any expectation
that I'd get anything. My wife wants to buy a car today, which is
going to take a while.
--
Bill Sloman, Nijmegen
<pcdhSpamMeSensel...@electrooptical.net> wrote:
Why do you think that? The DDS syntheisised sine wave is likely to
have a lower jitter than you'd get from most VCOs, and you've got a
whole lot better idea of the frequency you are synthesising.
There are occasion when an ADC plus digital signal processing plus a
DAC do make sense - as soon as you want a non-linear or - worse - a
non-monotonic relationship between input and output. For phase-locked
loops this happens quite often - as Floyd M Gardener pointed out, the
sort of phase-sensitive detector that gives you the best lock doesn't
necessarily get you into lock as fast as you'd like.
The DDS approach comes into its own when you want several sine wave
sources at once - for detecting at twice the frequency or both in-
phase and in quadrature. The analogue techniques for doing this are no
less messy and generally give you a poorer quality sine wave.
Inexpensive close tolerance varactors don't seem to be as readily
available. And the tuning range available is rarely impressive.
Varactors have a roughly hyperbolic capacitance to voltage
relationship, so getting the tuning loop critically damped isn't going
to be all that easy.
Phil Allison does live in Sydney, but I don't expect to run into him -
I did suggest (here) that we get together over a coffee a few years
ago but he didn't like the idea.
Oz has been fine so far, but we're not yet entirely out of jet-lag.
We've been keeping a low profile. I did apply for two jobs yesterday,
but that was more to get my name on the books than in any expectation
that I'd get anything. My wife wants to buy a car today, which is
going to take a while.
--
Bill Sloman, Nijmegen