Forums

74HC4046 Model Development

Started by Jim Thompson October 20, 2012
I have been notified by Helmut Sennewald that the LTspice encryption
process hides the node sequence.  So please revisit...

http://www.analog-innovations.com/SED/HC4046_SUB.zip

for a corrected version.

This is just the VCO portion for now, and just the variable part;
suitable only for LTspice.

Please try it out and let me know your comments, etc.

Since I'm new to working with LTspice, please send me any error
messages, so I can refine my skills >:-}
		
                                        ...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.
On 10/20/2012 8:02 PM, Jim Thompson wrote:
> I have been notified by Helmut Sennewald that the LTspice encryption > process hides the node sequence. So please revisit... > > http://www.analog-innovations.com/SED/HC4046_SUB.zip > > for a corrected version. > > This is just the VCO portion for now, and just the variable part; > suitable only for LTspice. > > Please try it out and let me know your comments, etc. > > Since I'm new to working with LTspice, please send me any error > messages, so I can refine my skills >:-} > > ...Jim Thompson >
Thanks for taking on my suggestion from a while back, Jim. Looking forward to trying it out!
On Sat, 20 Oct 2012 20:06:46 -0400, bitrex
<bitrex@de.lete.earthlink.net> wrote:

>On 10/20/2012 8:02 PM, Jim Thompson wrote: >> I have been notified by Helmut Sennewald that the LTspice encryption >> process hides the node sequence. So please revisit... >> >> http://www.analog-innovations.com/SED/HC4046_SUB.zip >> >> for a corrected version. >> >> This is just the VCO portion for now, and just the variable part; >> suitable only for LTspice. >> >> Please try it out and let me know your comments, etc. >> >> Since I'm new to working with LTspice, please send me any error >> messages, so I can refine my skills >:-} >> >> ...Jim Thompson >> > >Thanks for taking on my suggestion from a while back, Jim. Looking >forward to trying it out!
My aim is to make the model as close to the silicon as possible. For amusement, since it had been mentioned, I'm also doing the uA741 at the same time. It may be done tomorrow or Monday, since it's rather easy. The 4046 will take awhile to get all the pieces working together. ...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.
Am 21.10.2012 02:02, schrieb Jim Thompson:
> I have been notified by Helmut Sennewald that the LTspice encryption > process hides the node sequence. So please revisit...
...Jim Thompson
>
why is it encrypted??
On Sun, 21 Oct 2012 19:36:17 +0200, G&#2013266172;nter Haarmann <none@none.de>
wrote:

>Am 21.10.2012 02:02, schrieb Jim Thompson: >> I have been notified by Helmut Sennewald that the LTspice encryption >> process hides the node sequence. So please revisit... > ...Jim Thompson >> > > >why is it encrypted??
I'm not in the teaching business, I'm in the money-making business, so I don't want to divulge my techniques. ...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.
On Sun, 21 Oct 2012 10:42:26 -0700, Jim Thompson wrote:

> On Sun, 21 Oct 2012 19:36:17 +0200, G&uuml;nter Haarmann <none@none.de> > wrote: > >>Am 21.10.2012 02:02, schrieb Jim Thompson: >>> I have been notified by Helmut Sennewald that the LTspice encryption >>> process hides the node sequence. So please revisit... >> ...Jim Thompson >>> >>> >> >>why is it encrypted?? > > I'm not in the teaching business, I'm in the money-making business, so I > don't want to divulge my techniques. > > ...Jim Thompson
So you want us to review it for free so that you can go make money off of it? Hmm. -- Tim Wescott Control system and signal processing consulting www.wescottdesign.com
On Sun, 21 Oct 2012 13:31:44 -0500, Tim Wescott
<tim@seemywebsite.please> wrote:

>On Sun, 21 Oct 2012 10:42:26 -0700, Jim Thompson wrote: > >> On Sun, 21 Oct 2012 19:36:17 +0200, G&#2013266172;nter Haarmann <none@none.de> >> wrote: >> >>>Am 21.10.2012 02:02, schrieb Jim Thompson: >>>> I have been notified by Helmut Sennewald that the LTspice encryption >>>> process hides the node sequence. So please revisit... >>> ...Jim Thompson >>>> >>>> >>> >>>why is it encrypted?? >> >> I'm not in the teaching business, I'm in the money-making business, so I >> don't want to divulge my techniques. >> >> ...Jim Thompson > >So you want us to review it for free so that you can go make money off of >it? > >Hmm.
If you will remember a prior post, I asked which devices had poor Spice models. The 74HC4046 was mentioned multiple times. I am supplying a model that I presume will behave more accurately. Since the 74HC4046 is complex, I am asking, as I go, "Does this portion fit?" If no one really wants a good 74HC4046 model I'll go do something else. ...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.
On 10/21/2012 2:16 PM, Jim Thompson wrote:
> On Sun, 21 Oct 2012 13:31:44 -0500, Tim Wescott > <tim@seemywebsite.please> wrote: > >> On Sun, 21 Oct 2012 10:42:26 -0700, Jim Thompson wrote: >> >>> On Sun, 21 Oct 2012 19:36:17 +0200, G&#2013266172;nter Haarmann <none@none.de> >>> wrote: >>> >>>> Am 21.10.2012 02:02, schrieb Jim Thompson: >>>>> I have been notified by Helmut Sennewald that the LTspice encryption >>>>> process hides the node sequence. So please revisit... >>>> ...Jim Thompson >>>>> >>>>> >>>> >>>> why is it encrypted?? >>> >>> I'm not in the teaching business, I'm in the money-making business, so I >>> don't want to divulge my techniques. >>> >>> ...Jim Thompson >> >> So you want us to review it for free so that you can go make money off of >> it? >> >> Hmm. > > If you will remember a prior post, I asked which devices had poor > Spice models. The 74HC4046 was mentioned multiple times. I am > supplying a model that I presume will behave more accurately. Since > the 74HC4046 is complex, I am asking, as I go, "Does this portion > fit?" > > If no one really wants a good 74HC4046 model I'll go do something > else. > > ...Jim Thompson
Please do that. Otherwise, if you want to help and want help yourself, then work with these people.
Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
wrote:

>On Sun, 21 Oct 2012 13:31:44 -0500, Tim Wescott ><tim@seemywebsite.please> wrote: > >>On Sun, 21 Oct 2012 10:42:26 -0700, Jim Thompson wrote: >> >>> On Sun, 21 Oct 2012 19:36:17 +0200, G&#2013266172;nter Haarmann <none@none.de> >>> wrote: >>> >>>>Am 21.10.2012 02:02, schrieb Jim Thompson: >>>>> I have been notified by Helmut Sennewald that the LTspice encryption >>>>> process hides the node sequence. So please revisit... >>>> ...Jim Thompson >>>>> >>>>> >>>> >>>>why is it encrypted?? >>> >>> I'm not in the teaching business, I'm in the money-making business, so I >>> don't want to divulge my techniques. >>> >>> ...Jim Thompson >> >>So you want us to review it for free so that you can go make money off of >>it? >> >>Hmm. > >If you will remember a prior post, I asked which devices had poor >Spice models. The 74HC4046 was mentioned multiple times. I am >supplying a model that I presume will behave more accurately. Since >the 74HC4046 is complex, I am asking, as I go, "Does this portion >fit?" > >If no one really wants a good 74HC4046 model I'll go do something >else.
I'll think (more than) twice before I use the 4046 in a design again. As Phil and you pointed out its pretty crappy. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico@nctdevpuntnl (punt=.) --------------------------------------------------------------
On Sat, 20 Oct 2012 17:02:13 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>I have been notified by Helmut Sennewald that the LTspice encryption >process hides the node sequence. So please revisit... > >http://www.analog-innovations.com/SED/HC4046_SUB.zip > >for a corrected version. > >This is just the VCO portion for now, and just the variable part; >suitable only for LTspice. > >Please try it out and let me know your comments, etc. > >Since I'm new to working with LTspice, please send me any error >messages, so I can refine my skills >:-} > >
What upsets me most is that it's a copy of my 1965 design, the MC4024 (bipolar devices, oscillator core is PECL, TTL output). And they bungled the copy :-( Unlike my original version, the CMOS version dumps the capacitor is an uncontrolled manner, and the thresholds and current mirrors are abominations of "engineering". ...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.