# Search results

1. ### FIR Low Pass Filter Response

Hello Everyone I designed a FIR Low Pass Filter using MATLAB's fdatool, filter specifications are: Fpass = 10K Fstop = 12.5K stopband attenuation = 200dB but the designed filter doesn't show the 200dB attenuation ? The filter's specs and its response in fdatool is attached as images. Thanks in...
2. ### Decimation Low Pass Filter

Hello Everyone Would like to know about very basic concept regarding Decimation Process, Let my baseband signal is 1KHZ and it is sampled at very high sampling rate let say 650KHz now I want to downsample the signal to decrease sampling frequency to Nyquist criteria, so what should be the cut...
3. ### SNR Degradation due to CIC Filter

Hello Everyone, Delta Sigma ADC: Modulator = 2nd Order CIC Filter = 3rd Order OSR = 256 CIC is hardware efficient Decimation Filter but its frequency response shows passband droop and wide transition band, so my question is due to these non-idealities of CIC filter, How much degradation in...
4. ### Delta Sigma ADC output

Hello Everyone I have got the output of Delta Sigma ADC after Decimation (FIR LPF and Downsampling), How to convert Delta Sigma ADC's output to its voltage equivalent ? Any suggestions/relevant material will be helpful. Thanks in Advance.
5. ### Delta Sigma Modulator output to Decimation Filter

Hello Everyone The Delta Sigma Modulator has 1-bit quantizer (so 0s and 1s as output) so Do I need to take 0s and 1s as input to Decimation filter or I need to convert them to -1 and +1, got confused after some literature review, any suggestion will be highly appreciated. Thanks in Advance.

Hello Everyone I am working on Delta Sigma ADCs in MATLAB, to equalize the amplitude of input and output I have to multiply the output by a scaling factor, anyone who has experience of ADC (using or working on ADCs) share the reason for this scaling ? and Secondly the SNR after Delta Sigma...
7. ### Decimation Filter Output

Hello Everyone I designed a FIR Low Pass Filter (Decimation Filter) for Delta Sigma modulator in MATLAB, After decimation filter the output is in the range of 0.5 to -0.5 (input to adc is sine wave, and calculated ENOB~11). I got confused because to my understanding if ENOB are let suppose 8...
8. ### Decimation Filter (FIR) Output

Hello Everyone I am designing a Decimation Filter for Delta Sigma ADC, the input to ADC is 3 KHz 0.5V peak to peak (0.25V to -0.25V) Sine wave but the output of Decimation Filter (3367 taps FIR Low Pass Filter) is 3 KHz sine wave but the amplitude in the range of 0.507 to -0.507. How I should...
9. ### SNR calculation of Delta Sigma ADC after Modulator and After Decimation

Hello Everyone I have designed a decimation filter for Delta Sigma ADC and now I want to calculate the SNR of Delta Sigma ADC after the modulator and then after Decimation. As far as Schrier and Malcovati's Toolboxes are concerned I was unable to apply them (How to use them because lot of...
10. ### Save Analog input (at clock frquency) to Text File using Verilog-A

Hello Everyone To use CADENCE schematic's output for my MATLAB code I need to store three parameters of CADENCE schematic i.e. Analog Input, Time and Digital Output of the system, so I want to use/write a Verilog-A code to save the data in text file so any ideas/available Verilog-A...
11. ### ALE parameter values

Hello everyone !!! I wanted to implement Adaptive Line Enhance (ALE) in MATLAB but I am having problem on what should be the value of delta (delay) to decorrelate noise and input signal ? Anyone who have knowledge of ALE or implemented it in MATLAB kindly guide me asap that how can I select...
12. ### Layout from Verilog code in Cadence

Hi I have designed my system in Verilog HDL. Can I design Layout in Cadence from verilog code ? If yes then kindly mention steps involved too. if any related reading material is available then kindly post the links that will be really helpful. Thanks to all.
13. ### Layout from Verilog code

Hi I have designed my system in Verilog HDL now I want to design Layout of the complete system using CADENCE tool from verilog code, so kindly mention the steps involved. if any related reading material is available then kindly post the links that will be really helpful. Thanks to all.
14. ### Non-Idealities in Delta Sigma Modulator (CT and DT both)

I would like those who have done research on Delta Sigma ADC to answer few questions. 1. What are non-idealities in delta sigma modulator 2. how to model those non-idealities in MATLAB Kindly post/mail the relevant reading material on eminent.engineer@yahoo.com. Thanks to all.
15. ### Adaptive Line Enhancer (ALE)

If someone has done any research or implemented Adaptive Line Enhancer (ALE) then kindly share your knowledge and implementation. Kindly post any reading material (books,tutorials,research papers etc). Thanks to all.
16. ### ALE model in Simulink

If someone has modeled Adaptive Line Enhancer (ALE) in simulink then kindly post it, it will be highly helpful and also if someone has got reading material related to Concepts of Adaptive Line Enhancer then kindly share it. Thanks to all.
17. ### Delta Sigma Modulator Non-Idealities

I have done little research on Delta Sigma Modulators. I would like those who have done research in this topic to answer few questions. 1. What are non-idealities in delta sigma modulator 2. how to model those non-idealities in MATLAB Kindly post/mail the relevant reading material on...
18. ### Delta Sigma Toolbox in MATLAB

If someone has used Delta Sigma Toolbox (Scherier or Malcovati) for modeling Delta Sigma ADC in MATLAB then kindly I need guidance. I want to model second order Delta Sigma modulator and decimation filter in MATLAB with non-idealities and couldn't know how to utilize these toolboxes for...
19. ### Delta Sigma Toolbox

If someone has used Delta Sigma Toolbox for modeling delta sigma adc then kindly guide me. I want to model second order delta sigma modulator and decimation filter. Any help in this regard will be highly appreciated. Thanks to all.
20. ### Books/Tutorials/Video Lectures related to Proteus Design

Kindly suggest/recommend tutorials/books/video lectures related to Proteus design. I want to learn design process and tips and tricks for designing in Proteus and share your learning process so that I could track the right path and try to improve proteus design skills. Thanks to all.