## What's "DDS"?

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• Message 1 of 8 , Feb 5, 2013
<http://www.amazon.com/SG1005-Signal-Generator-Source-Function/dp/B008N7M5KU/ref=sr_1_6?s=electronics&ie=UTF8&qid=1360051346&sr=1-6&keywords=frequency+counter+module>

I've seen the term used as "DDS signal" and "DDS function".

I've searched the web but found no conclusive definition.

What is DDS?

Thanks,
Dave
• Direct digital synthesis ... http://www.ni.com/white-paper/5516/en might help. There are other tutorials also. Cheers, Ross
Message 2 of 8 , Feb 5, 2013
Direct digital synthesis ...

http://www.ni.com/white-paper/5516/en might help. There are other
tutorials also.

Cheers,

Ross

On 05-Feb-13 7:24 PM, Dave C wrote:
> <http://www.amazon.com/SG1005-Signal-Generator-Source-Function/dp/B008N7M5KU/ref=sr_1_6?s=electronics&ie=UTF8&qid=1360051346&sr=1-6&keywords=frequency+counter+module>
>
> I've seen the term used as "DDS signal" and "DDS function".
>
> I've searched the web but found no conclusive definition.
>
> What is DDS?
>
> Thanks,
> Dave
>
> ------------------------------------
>
>
>
>
>
• Dave, Simply put it is a way to generate signals digitally using lookup table. Imagine digitizing a sine wave, measuring voltage of the signal at various
Message 3 of 8 , Feb 5, 2013
Dave,

Simply put it is a way to generate signals digitally using lookup table.

Imagine digitizing a sine wave, measuring voltage of the signal at various equally divided points of the curve. For DDS: Now take those data and reverse it by generating those voltages at various points in time and you have a very good simulation of a sine curve (or any signal). That's DDS.

DDS can be used to generate a very good likeness of many types of signal. Because it is digital there can be some digital artifacts that might need smoothing out.

Jong

On Feb 4, 2013, at 10:24 PM, Dave C <davec2468@...> wrote:

> I've seen the term used as "DDS signal" and "DDS function".
>
> I've searched the web but found no conclusive definition.
>
> What is DDS?
• ... Another good tutorial on DDS. Perhaps more than Dave wanted to
Message 4 of 8 , Feb 5, 2013
On 2/5/2013 2:24 AM, Dave C wrote:
>
> http://www.amazon.com/SG1005-Signal-Generator-Source-Function/dp/B008N7M5KU/ref=sr_1_6?s=electronics&ie=UTF8&qid=1360051346&sr=1-6&keywords=frequency+counter+module>
>
> I've seen the term used as "DDS signal" and "DDS function".
>
> I've searched the web but found no conclusive definition.
>
> What is DDS?
>
> Thanks,
> Dave
>
> __.

Another good tutorial on DDS.
<http://www.analog.com/static/imported-files/tutorials/450968421DDS_Tutorial_rev12-2-99.pdf>

Perhaps more than Dave wanted to know.

The other Howard

[Non-text portions of this message have been removed]
• Howard, 122 pages... A lot more than.... ... I m saving the PDF on my computer. Thanks. Jong
Message 5 of 8 , Feb 5, 2013
Howard,

122 pages... A lot more than....

:-)

I'm saving the PDF on my computer. Thanks.

Jong

On Feb 5, 2013, at 8:18 AM, Howard Hansen <hrhan@...> wrote:

> Perhaps more than Dave wanted to know.
• In a message dated 2/5/2013 12:19:14 P.M. Central Standard Time, hrhan@att.net writes: What is DDS?
Message 6 of 8 , Feb 5, 2013
In a message dated 2/5/2013 12:19:14 P.M. Central Standard Time,
hrhan@... writes:

What is DDS?<<
Dr. of Dental Surgery (sorry! Couldn't resist!)

[Non-text portions of this message have been removed]
• Thanks guys. New terms every day... Dave -=-=-=-
Message 7 of 8 , Feb 5, 2013
Thanks guys. New terms every day...

Dave

-=-=-=-

On 5 February 2013, at 11:53 AM, JanRwl@... wrote:

> In a message dated 2/5/2013 12:19:14 P.M. Central Standard Time,
> hrhan@... writes:
>
> What is DDS?<<
> Dr. of Dental Surgery (sorry! Couldn't resist!)
• Check out my short article: http://www.scopejunction.com/author.asp?section_id=1835&doc_id=250767 Michael
Message 8 of 8 , Feb 8, 2013
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