simulink digital delta sigma

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Varun
Varun 2023-3-4
as a newbie to simulink and matlab. i would like to know whether the model below can be simulated in matlab before i lock it down in rtl. i'm fairly new to modelling in simulink, and hence would like some help on how do implement the quantiser and regsiter(flops) in simulink?
i've been reading up on the fixed point simulator, is it helpful here since the input values are fractional

回答(1 个)

Balavignesh
Balavignesh 2023-3-14
Hi Varun,
As per my understanding, you want to know about the following:
  1. Whether you could simulate the model attached with the question
  2. Implementation of register and quantizer in Simulink
  3. Is reading about fixed point simulator helpful.
To answer your question,
  1. Yes, you can simulate the model attached with the question. You can use the “Discrete Transfer Fcn” block to model the transfer function. To create the rest of the model, you can use the “Quantizer Block” and “Sum” along with the “Discrete Transfer Fcn” block.
  2. You can use theQuantizerblock to model a quantizer in Simulink. Please refer to this example to get to know how it’s used. You can use “D Flip-Flop”/”S-R Flip-Flop”/”J-K Flip-Flop” to model a register.
  3. Certain blocks like “D Flip-Flop works on Boolean data. In that case, reading about fixed point simulator might be helpful.
I hope this answers your questions.

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