White noise generator in Pspice

A

Archer

Guest
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?
 
On Mon, 31 May 2004 10:17:31 +0800, Archer <xydarcher@hotmail.com>
wrote:

How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?
Click to expand...
PWL can be made continuously on-going. Look up "REPEAT"

...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.
 
You could setup an Digital LFSR, and filter the result to give you
band limited white noise.

I have done this some years back.

iQbal

Archer <xydarcher@hotmail.com> wrote in message news:<c35lb09gh9bukfiv8nq9kk4ok8jonomti0@4ax.com>...
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?
Click to expand...
 
On 1 Jun 2004 16:26:02 -0700, iqbalbhinderwala@msn.com (iQbal) wrote:

You could setup an Digital LFSR, and filter the result to give you
band limited white noise.

I have done this some years back.

iQbal

Archer <xydarcher@hotmail.com> wrote in message news:<c35lb09gh9bukfiv8nq9kk4ok8jonomti0@4ax.com>...
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?
Click to expand...
Is this the article you found? It seems to be in PSpice-like format.

http://www.spectrum-soft.com/news/fall97/noise.shtm

In the pspcref.pdf guides:

v14.2: pages 144 and 316

v10.0i: pages 168 and 377

...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.
 
Does Pspice contains a RND or White function?
On Tue, 01 Jun 2004 16:32:22 -0700, Jim Thompson
<thegreatone@example.com> wrote:

On 1 Jun 2004 16:26:02 -0700, iqbalbhinderwala@msn.com (iQbal) wrote:

You could setup an Digital LFSR, and filter the result to give you
band limited white noise.

I have done this some years back.

iQbal

Archer <xydarcher@hotmail.com> wrote in message news:<c35lb09gh9bukfiv8nq9kk4ok8jonomti0@4ax.com>...
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?

Is this the article you found? It seems to be in PSpice-like format.

http://www.spectrum-soft.com/news/fall97/noise.shtm

In the pspcref.pdf guides:

v14.2: pages 144 and 316

v10.0i: pages 168 and 377

...Jim Thompson
Click to expand...
 
"RND", yes, "WHITE", no....

RTFM under notation

On Wed, 02 Jun 2004 11:27:20 +0800, Archer <xydarcher@hotmail.com>
wrote:

Does Pspice contains a RND or White function?
On Tue, 01 Jun 2004 16:32:22 -0700, Jim Thompson
thegreatone@example.com> wrote:

On 1 Jun 2004 16:26:02 -0700, iqbalbhinderwala@msn.com (iQbal) wrote:

You could setup an Digital LFSR, and filter the result to give you
band limited white noise.

I have done this some years back.

iQbal

Archer <xydarcher@hotmail.com> wrote in message news:<c35lb09gh9bukfiv8nq9kk4ok8jonomti0@4ax.com>...
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?

Is this the article you found? It seems to be in PSpice-like format.

http://www.spectrum-soft.com/news/fall97/noise.shtm

In the pspcref.pdf guides:

v14.2: pages 144 and 316

v10.0i: pages 168 and 377

...Jim Thompson
Click to expand...

...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.
 
A digital LFSR is a bunch of shift registers with an xor gate in the
feedback.
Its what the computers use to generate a random number.

just hook one up in psice using gates. The output is a maximum length
sequence, which is white.

iQBal




Jim Thompson <thegreatone@example.com> wrote in message news:<cqjrb0ljkticjghi36f3885va8nj38c8s2@4ax.com>...
"RND", yes, "WHITE", no....

RTFM under notation

On Wed, 02 Jun 2004 11:27:20 +0800, Archer <xydarcher@hotmail.com
wrote:

Does Pspice contains a RND or White function?
On Tue, 01 Jun 2004 16:32:22 -0700, Jim Thompson
thegreatone@example.com> wrote:

On 1 Jun 2004 16:26:02 -0700, iqbalbhinderwala@msn.com (iQbal) wrote:

You could setup an Digital LFSR, and filter the result to give you
band limited white noise.

I have done this some years back.

iQbal

Archer <xydarcher@hotmail.com> wrote in message news:<c35lb09gh9bukfiv8nq9kk4ok8jonomti0@4ax.com>...
How to generator a white noise in Pspice? The PWL file is in a
limited time. Is there some circuit that would generate white noise?

I found some disscuss before on google but it's a pity that I can't
find it now. Where should I find the former disscuss?

Is this the article you found? It seems to be in PSpice-like format.

http://www.spectrum-soft.com/news/fall97/noise.shtm

In the pspcref.pdf guides:

v14.2: pages 144 and 316

v10.0i: pages 168 and 377

...Jim Thompson


...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.
Click to expand...
 
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