Sigma-Delta ADC, From Behavioral Model to Verilog and VHDL

Model-Based Design of a Sigma-Delta ADC, from behavioral model to VHDL code.

Description

For a full description of the models, refer to the September 2007 MATLAB Digest article.

http://www.mathworks.com/company/newsletters/digest/2007/sept/sigmadelta.html

We present a series of Simulink models to design a high-level behavioral model of a Sigma-Delta ADC. The high-level behavioral model has an Analog section and a Digital section that comprises a digital filter. We partition the digital filter into three cascade filters that use a total of 10 times less filter coefficients than the original filter. We then elaborate the first filter in the cascade in such a way that it requires no multiplications for implementation. We convert our design to fixed-point. We then proceed to generate VHDL code for our elaborated filter using Simulink HDL coder. This is an example of Model-Based Design.

• Required Products: Filter Design Toolbox; Fixed-Point Toolbox; Signal Processing Blockset; Simulink; Simulink Fixed Point; Signal Processing Toolbox
• MATLAB release: MATLAB 7.5 (R2007b)

Other Files

Sigma_Delta/bin2sbin.m,
Sigma_Delta/elaborated_design.mdl,
Sigma_Delta/elaborated_design_sfun.mexw32,
Sigma_Delta/filter_design.m,
Sigma_Delta/fixed_point.mdl,
Sigma_Delta/fixed_point_sfun.mexw32,
Sigma_Delta/generate_fir_lut.m,
Sigma_Delta/high_level.mdl,
Sigma_Delta/high_level_sfun.mexw32,
Sigma_Delta/multi_stage.mat,
Sigma_Delta/multi_stage.mdl,
Sigma_Delta/multi_stage_fixed.mat,
Sigma_Delta/multi_stage_sfun.mexw32,
Sigma_Delta/one_stage.mat,
Sigma_Delta/Readme.doc,
Sigma_Delta/sigma_delta_control.m

[Anthony G. Marino]

 

[jeya lakshmi]

need

[Alok Kumar]

 

[shriniwash Yadav]

 

[Achraf Dhayni]

I obtain this error msg:
Object parameter contains an invalid handle.

Please tell me why, and how to solve it.

[deepti patro]

gud

[Deepak Manikandan]

No comments

[Sandor Szikora]

 

[YoungSik Hwang]

..

[ASHUTOSH GUPTA]

....

[Jun Wang]

 

[G wei]

It is very good for mr

[Jayashree Rajagpoal]

 

[Seb Cheung]

When I tried simulating I get
Message: Internal Error,
Reported by : Stateflow,
Summary: Syntax error in propery name

and
Message: Model error
reported by: Simulink
Summary: Error using==>Stateflow\private\slsf at 88Syntax error in property name

[ajaharudeen shaik]

ok good

[chandran mahesh]

 

[zhang jedi]

good, i like it

[CBNU IDEC 11th Sejin]

I love you!!!

Thanks for making~

[syafriel kurniawan]

download

[Sushant singh]

nice work

[sushant singh]

excellent work

[shiva prasad]

fine

[JH YOO]

*^^*

[Neetha John]

good code

[PRAMOD BOKDE]

 

[Praveen K]

good

[sunish natarajan]

 

[selvakumar surulisubbu]

 

[Vinay Goli]

 

[Ashwini Deshpande]