Jan 10, 2006 #1 E eejli Advanced Member level 4 Joined Mar 24, 2004 Messages 115 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,032 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!
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!
Feb 3, 2006 #2 F fh2 Newbie level 3 Joined Oct 14, 2005 Messages 3 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,303 3rd order sigma delta verilog code have u tried using the delta sigma toolbox for matlab: https://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=19&objectType=file and also, do u mind sharing the verilog code? it might be useful to some of us.
3rd order sigma delta verilog code have u tried using the delta sigma toolbox for matlab: https://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=19&objectType=file and also, do u mind sharing the verilog code? it might be useful to some of us.
Feb 4, 2006 #3 currentmirror2000 Member level 4 Joined Dec 21, 2004 Messages 77 Helped 6 Reputation 16 Reaction score 1 Trophy points 1,288 Activity points 798 sigma delta modulator matlab eejli said: 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! Click to expand... knowing the transient output and the modulator structure is enough to transfer result in the time domain into the frequency domain
sigma delta modulator matlab eejli said: 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! Click to expand... knowing the transient output and the modulator structure is enough to transfer result in the time domain into the frequency domain
Apr 9, 2006 #4 N neter Member level 2 Joined Jul 15, 2004 Messages 46 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 341 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.
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.
Apr 9, 2006 #5 B bob_lv Member level 1 Joined Dec 19, 2005 Messages 37 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,660 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.
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.
Apr 9, 2006 #6 E ee484 Full Member level 3 Joined Jan 4, 2005 Messages 153 Helped 5 Reputation 10 Reaction score 3 Trophy points 1,298 Activity points 1,559 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.
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.
Apr 10, 2006 #7 B bob_lv Member level 1 Joined Dec 19, 2005 Messages 37 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,660 sigma delta modulator I think eejli talking about a digital delta-sigma modulator. It may be used in a fractinal-N frequency synthesizer or a DA converter.
sigma delta modulator I think eejli talking about a digital delta-sigma modulator. It may be used in a fractinal-N frequency synthesizer or a DA converter.