increasing number of frequency digits in AC analysis in spice 2G6
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Posted by hugocoolens@gmail.com on March 5, 2007, 7:20 am
Please log in for more thread options I'm trying to increase the number of digits in the _frequency column_ of an ac-analysis like this: .options numdgt=7 unfortunately this does only increase the number of digits in the "voltage (and current) columns" , the frequency column however is unaffected. e.g. 1.122E-02 -2.153112E-02 in which the first value represents the frequency and the second a voltage Can anyone tell me how to make spice 2g6 to generate more digits for the first value? hugo | |||||||||||||||||||
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Posted by Jim Thompson on March 5, 2007, 9:14 am
Please log in for more thread options On 5 Mar 2007 04:20:16 -0800, "hugocoolens@gmail.com" In the .AC analysis specify finer steps. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. | |||||||||||||||||||
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Posted by hugocoolens@gmail.com on March 5, 2007, 11:27 am
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On 5 mrt, 15:14, Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web- Site.com> wrote:
> On 5 Mar 2007 04:20:16 -0800, "hugocool...@gmail.com" > > > > >I'm trying to increase the number of digits in the _frequency column_
> >of an ac-analysis like this: > >.options numdgt=7 > >unfortunately this does only increase the number of digits in the > >"voltage (and current) columns" , the frequency column however is > >unaffected. >
> >e.g.
> >1.122E-02 -2.153112E-02 >
> >in which the first value represents the frequency and the second a
> >voltage > >Can anyone tell me how to make spice 2g6 to generate more digits for > >the first value? >
> >hugo
>
I tried this but it doesn't help as Spice just begins to repeat
> In the .AC analysis specify finer steps. frequency values in stead of refining them e.g. 1.006E+01 -3.601257E+01 1.006E+01 -3.601690E+01 1.007E+01 -3.602124E+01 1.007E+01 -3.602557E+01 1.008E+01 -3.602991E+01 1.008E+01 -3.603424E+01 1.009E+01 -3.603856E+01 1.009E+01 -3.604289E+01 regards, hugo >
> ...Jim Thompson > -- > | James E.Thompson, P.E. | mens | > | Analog Innovations, Inc. | et | > | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | > | Phoenix, Arizona Voice:(480)460-2350 | | > | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | > | http://www.analog-innovations.com | 1962 | > > I love to cook with wine. Sometimes I even put it in the food. | |||||||||||||||||||
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Posted by Jim Thompson on March 5, 2007, 11:45 am
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On 5 Mar 2007 08:27:35 -0800, "hugocoolens@gmail.com" >On 5 mrt, 15:14, Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web-
>Site.com> wrote: >> On 5 Mar 2007 04:20:16 -0800, "hugocool...@gmail.com"
>> >> >> >> >I'm trying to increase the number of digits in the _frequency column_
>> >of an ac-analysis like this: >> >.options numdgt=7 >> >unfortunately this does only increase the number of digits in the >> >"voltage (and current) columns" , the frequency column however is >> >unaffected. >>
>> >e.g.
>> >1.122E-02 -2.153112E-02 >>
>> >in which the first value represents the frequency and the second a
>> >voltage >> >Can anyone tell me how to make spice 2g6 to generate more digits for >> >the first value? >>
>> >hugo
>>
>> In the .AC analysis specify finer steps. >I tried this but it doesn't help as Spice just begins to repeat
>frequency values in stead of refining them e.g. > 1.006E+01 -3.601257E+01 > 1.006E+01 -3.601690E+01 > 1.007E+01 -3.602124E+01 > 1.007E+01 -3.602557E+01 > 1.008E+01 -3.602991E+01 > 1.008E+01 -3.603424E+01 > 1.009E+01 -3.603856E+01 > 1.009E+01 -3.604289E+01 > >regards, >hugo >>
>> ...Jim Thompson >> -- >> | James E.Thompson, P.E. | mens | >> | Analog Innovations, Inc. | et | >> | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | >> | Phoenix, Arizona Voice:(480)460-2350 | | >> | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | >> | http://www.analog-innovations.com | 1962 | >> >> I love to cook with wine. Sometimes I even put it in the food. >
Maybe it's 2G6. In PSpice, with 101 Points per Decade, I'm getting *15* place accuracy for Frequency. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. | |||||||||||||||||||
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Posted by hugocoolens@gmail.com on March 5, 2007, 12:07 pm
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On 5 mrt, 17:45, Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web- Site.com> wrote:
> On 5 Mar 2007 08:27:35 -0800, "hugocool...@gmail.com" > > > > >On 5 mrt, 15:14, Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web-
> >Site.com> wrote: > >> On 5 Mar 2007 04:20:16 -0800, "hugocool...@gmail.com"
>
> >> >I'm trying to increase the number of digits in the _frequency column_
> >> >of an ac-analysis like this: > >> >.options numdgt=7 > >> >unfortunately this does only increase the number of digits in the > >> >"voltage (and current) columns" , the frequency column however is > >> >unaffected. >
> >> >e.g.
> >> >1.122E-02 -2.153112E-02 >
> >> >in which the first value represents the frequency and the second a
> >> >voltage > >> >Can anyone tell me how to make spice 2g6 to generate more digits for > >> >the first value? >
> >> >hugo
>
> >> In the .AC analysis specify finer steps.
> >I tried this but it doesn't help as Spice just begins to repeat
> >frequency values in stead of refining them e.g. > > 1.006E+01 -3.601257E+01 > > 1.006E+01 -3.601690E+01 > > 1.007E+01 -3.602124E+01 > > 1.007E+01 -3.602557E+01 > > 1.008E+01 -3.602991E+01 > > 1.008E+01 -3.603424E+01 > > 1.009E+01 -3.603856E+01 > > 1.009E+01 -3.604289E+01 >
> >regards,
> >hugo >
> >> ...Jim Thompson
> >> -- > >> | James E.Thompson, P.E. | mens | > >> | Analog Innovations, Inc. | et | > >> | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | > >> | Phoenix, Arizona Voice:(480)460-2350 | | > >> | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | > >> | http://www.analog-innovations.com | 1962 | >
> >> I love to cook with wine. Sometimes I even put it in the food.
>
yes, it is 2G6 I am using, it seems hard to believe it is not
> Maybe it's 2G6. In PSpice, with 101 Points per Decade, I'm getting > *15* place accuracy for Frequency. possible to increase the number of digits in the frequency column. Is this a bug? Or is there a workaround (except using PSpice of course) regards, Hugo b.t.w. Spice 3F _does_ give 7 digits for the frequency >
> ...Jim Thompson > -- > | James E.Thompson, P.E. | mens | > | Analog Innovations, Inc. | et | > | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | > | Phoenix, Arizona Voice:(480)460-2350 | | > | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | > | http://www.analog-innovations.com | 1962 | > > I love to cook with wine. Sometimes I even put it in the food. | |||||||||||||||||||
>of an ac-analysis like this:
>.options numdgt=7
>unfortunately this does only increase the number of digits in the
>"voltage (and current) columns" , the frequency column however is
>unaffected.
>
>e.g.
>1.122E-02 -2.153112E-02
>
>in which the first value represents the frequency and the second a
>voltage
>Can anyone tell me how to make spice 2g6 to generate more digits for
>the first value?
>
>hugo