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4046 LTspice Model

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Jim Thompson

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Oct 27, 2012, 1:11:18 PM10/27/12
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Did anyone ever try out the 74HC4046 vcm model I posted?

...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 |
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I love to cook with wine. Sometimes I even put it in the food.

Gerhard Hoffmann

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Oct 27, 2012, 4:02:01 PM10/27/12
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Am 27.10.2012 19:11, schrieb Jim Thompson:
> Did anyone ever try out the 74HC4046 vcm model I posted?

Can only speak for me: no.

I can learn nothing from it since it is encrypted, and there
is no other incentive to compare it to my 4046
experience.
When I use the 4046 it is usually only because of its
phase detectors. My VCOs have crystals or they are DDSes
(which implies a lack of 4046s, usually.)

Semiconductor makers will ignore your LTspice models, too,
because the LT spice license prohibits its use for
commercial IC design. I do not expect LT to jump on the
74HC4046 bandwagon.

Just see how Scott Wurzer (works for AD, father of AD797)
avoids the the use of LTspice in
<http://www.diyaudio.com/forums/analog-line-level/218373-discrete-opamp-open-design-183.html>
although the discussion is about making a LTspice model
for the BF862 that really works.



Anybody using H-Spice here? Is it worth the money?

regards, Gerhard

Jim Thompson

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Oct 27, 2012, 4:28:30 PM10/27/12
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On Sat, 27 Oct 2012 22:02:01 +0200, Gerhard Hoffmann <dk...@arcor.de>
wrote:

>Am 27.10.2012 19:11, schrieb Jim Thompson:
>> Did anyone ever try out the 74HC4046 vcm model I posted?
>
>Can only speak for me: no.
>
>I can learn nothing from it since it is encrypted, and there
>is no other incentive to compare it to my 4046
> experience.

My intent was to provide a usable model, encrypted to avoid divulging
how I did it.

>When I use the 4046 it is usually only because of its
>phase detectors. My VCOs have crystals or they are DDSes
>(which implies a lack of 4046s, usually.)

I've actually done that myself for G-job needs, though I now usually
just use a 74HC74 plus a 74HC00.

>
>Semiconductor makers will ignore your LTspice models, too,
>because the LT spice license prohibits its use for
>commercial IC design. I do not expect LT to jump on the
>74HC4046 bandwagon.

You're right there. The current business model is forcing you to
simulate on-line using the part vendor's simulator. You not only
don't get to see the model, you can only use the vendor's parts.

>
>Just see how Scott Wurzer (works for AD, father of AD797)
>avoids the the use of LTspice in
><http://www.diyaudio.com/forums/analog-line-level/218373-discrete-opamp-open-design-183.html>
>although the discussion is about making a LTspice model
>for the BF862 that really works.

I went to that link but am not seeing the BF862 discussion ??

>
>
>
>Anybody using H-Spice here? Is it worth the money?
>
>regards, Gerhard

Good simulator, matches everything I've ever done with PSpice
perfectly. I don't know the price, my use has been limited to using a
customer-provided copy; and I used PSpice Schematics as the schematic
entry.

If you're into blowing money, go with Cadence :-)

Jim Thompson

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Oct 27, 2012, 6:58:43 PM10/27/12
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On Sat, 27 Oct 2012 22:02:01 +0200, Gerhard Hoffmann <dk...@arcor.de>
wrote:

>Am 27.10.2012 19:11, schrieb Jim Thompson:
>> Did anyone ever try out the 74HC4046 vcm model I posted?
>
>Can only speak for me: no.
>
>I can learn nothing from it since it is encrypted, and there
>is no other incentive to compare it to my 4046
> experience.
>When I use the 4046 it is usually only because of its
>phase detectors. My VCOs have crystals or they are DDSes
>(which implies a lack of 4046s, usually.)
>
>Semiconductor makers will ignore your LTspice models, too,
>because the LT spice license prohibits its use for
>commercial IC design.
[snip]

I just realized what you said there. I would HARDLY use LTspice to
roll commercial IC designs on LTspice... while it's fast, it's
schematic entry is klutzier than that of Cadence Virtuoso.

PSpice is wonderful (and inexpensive) for that. Rather wild that,
just almost exactly a year ago, I rolled a complex mixed-signal chip
design using PSpice on my Lenovo X61s Notebook, that came out of the
foundry last May working perfectly... no tweaks required.

amdx

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Oct 27, 2012, 7:38:38 PM10/27/12
to
On 10/27/2012 12:11 PM, Jim Thompson wrote:
> Did anyone ever try out the 74HC4046 vcm model I posted?
>
> ...Jim Thompson
>

Sometimes the world can be a lonely place.
But, I still love you Jim.

Mikek :-)

Jamie

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Oct 27, 2012, 8:24:16 PM10/27/12
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Just keep the lights on, doors open and hands out in the open please!

Jamie

miso

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Oct 27, 2012, 8:14:49 PM10/27/12
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I used H-Spice in the 80's. I even met Shawn when he was a man. I don't
recall meeting Kim. In the day, it was as good as it got. But over the
years, all implementations of spice got cleaned up. Most of the time,
the lack of convergence is in the how the model is created, not in spice
itself.

I read that DIY Audio link, but it doesn't seem to be about LT Spice. I
have put other manufacturers models in LT Spice, so I don't see the
problem.

LTC Spice is pure marketing brilliance. You want the low volume customer
because they pay the highest per piece price. LT Spice serves the small
under-capitalized end of the business.

It is better to have 10k small customers than say Apple. Apple just
destroys suppliers due to their leverage. Once IMP lost the SCSI chip
business from Apple, it never recovered.

Jim Thompson

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Oct 27, 2012, 8:28:44 PM10/27/12
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On Sat, 27 Oct 2012 18:38:38 -0500, amdx <am...@knologynotthis.net>
wrote:
Of course you do, everyone loves me >:-}

John Fields

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Oct 28, 2012, 5:59:28 PM10/28/12
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On Sat, 27 Oct 2012 17:28:44 -0700, Jim Thompson
<To-Email-Use-Th...@On-My-Web-Site.com> wrote:

>On Sat, 27 Oct 2012 18:38:38 -0500, amdx <am...@knologynotthis.net>
>wrote:
>
>>On 10/27/2012 12:11 PM, Jim Thompson wrote:
>>> Did anyone ever try out the 74HC4046 vcm model I posted?
>>>
>>> ...Jim Thompson
>>>
>>
>> Sometimes the world can be a lonely place.
>>But, I still love you Jim.
>>
>> Mikek :-)
>
>Of course you do, everyone loves me >:-}

---
Indeed.

Some profess not to, and try to tear you down, but your mettle isn't
indefensible.

--
JF

Jim Thompson

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Oct 28, 2012, 6:41:36 PM10/28/12
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Indeed! "Mike Monett", on the LTspice List, tore into my 4046 post,
saying the PLL things I claimed to have designed were really designed
by Ron Treadway. "He" cited various data sheet PDF's on my page,
where I had added tags crediting Ron for his 9-gate wonder. Of course
"Monett" is so dense he failed to note MY PATENT for the design
further down the page ;-)

I wonder who "Monett" really is? An unfortunate number of posters
here are so inadequate they can't get it up, so they hide behind a
pseudonym and anonymously throw epithets. They shall henceforth be
called a "No Boner Poster" ;-)

John Larkin

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Oct 29, 2012, 6:58:53 PM10/29/12
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On Sat, 27 Oct 2012 18:38:38 -0500, amdx <am...@knologynotthis.net>
wrote:

We'd be better off if he were to securely encrypt all of his posts.


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
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