increasing number of frequency digits in AC analysis in spic

[hugocoolens@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

 

[Jim Thompson]

On 5 Mar 2007 04:20:16 -0800, "hugocoolens@gmail.com"
<hugocoolens@gmail.com> wrote:

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.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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

 

[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"



hugocool...@gmail.com> wrote:
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 Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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

 

[Jim Thompson]

On 5 Mar 2007 08:27:35 -0800, "hugocoolens@gmail.com"
<hugocoolens@gmail.com> wrote:

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"



hugocool...@gmail.com> wrote:
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 Voice480)460-2350 | |
| E-mail Address at Website Fax480)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 Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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

 

[hugocoolens@gmail.com]

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"



hugocool...@gmail.com> wrote:
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"

hugocool...@gmail.com> wrote:
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 Voice480)460-2350 | |
| E-mail Address at Website Fax480)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.
yes, it is 2G6 I am using, it seems hard to believe it is not

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 Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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