+ Post New Thread
Results 1 to 7 of 7

11th January 2006, 00:37 #1
 Join Date
 Mar 2004
 Posts
 115
 Helped
 2 / 2
 Points
 2,932
 Level
 12
delta sigma modulator verilog code
Hi guys,
I have a serious problem.
I have verilog code for a third order delta sigma modulator but donot have its simulink model.
How can I get the frequency domain characteristics of the modulator such as the STF,NTF and output spectrum? Verilog has only transient result.
Many thanks!

Advertisment

3rd February 2006, 12:17 #2
 Join Date
 Oct 2005
 Posts
 3
 Helped
 1 / 1
 Points
 1,325
 Level
 8
3rd order sigma delta verilog code
have u tried using the delta sigma toolbox for matlab:
http://www.mathworks.com/matlabcentr...bjectType=file
and also, do u mind sharing the verilog code? it might be useful to some of us.

Advertisment

4th February 2006, 08:18 #3
sigma delta modulator matlab
Originally Posted by eejli

Advertisment

9th April 2006, 09:02 #4
 Join Date
 Jul 2004
 Posts
 46
 Helped
 0 / 0
 Points
 1,976
 Level
 10
delta sigma code
Dear eejli,
Can you share verilog code for a third order delta sigma modulator to me?
I have building third order delta sigma model in verilog,but,I aways to encounter in verilog code .
thank you very much.

9th April 2006, 16:50 #5
 Join Date
 Dec 2005
 Posts
 38
 Helped
 2 / 2
 Points
 1,499
 Level
 8
sigma delta modulator site:edaboard.com
See sth about FFT. Just do a FFT to the transient results, you will get the spectrum.
Added after 1 minutes:
See sth about FFT and window function. Just do a FFT to the transient results, you will get the spectrum.

Advertisment

9th April 2006, 23:58 #6
 Join Date
 Jan 2005
 Posts
 153
 Helped
 5 / 5
 Points
 2,574
 Level
 11
sigma delta+matlab
are you guys talking about Verilog code for the digital part of sigma delta converter? Isn't a modulator analog block?
Can anyone explain me a bit?
Thank you.

10th April 2006, 05:05 #7
 Join Date
 Dec 2005
 Posts
 38
 Helped
 2 / 2
 Points
 1,499
 Level
 8
sigma delta modulator
I think eejli talking about a digital deltasigma modulator. It may be used in a fractinalN frequency synthesizer or a DA converter.
+ Post New Thread
Please login