This video is part of the second course of our *ElectrONiX* massive open online course (MOOC) series. You can sign up for the course *ElectrONiX - Digital* for free on the following link: imoox.at/course/digital ElectrONiX MOOC series: imoox.at/series/electronix
This video is so well made, that's a shame it hasn't more views. Anyway thank you, i have a project at school to present delta-sigma modulator and this video really explain the basics in an understandable way, with good diagramm and good analogy (coffe shop is awesome).
Thank you for your feedback. We are glad you like it :) Feel free to share and recommend our videos to others. Additionally we also develop a massive open online course series. The first course on amplifiers already started and is available at [1]. [1] imoox.at/mooc/local/landingpage/course.php?shortname=amps&lang=en
Congrats!. Your presentation is very good, since avoids complicated maths, understandable for not very high skilled but interested people as well. Great job!
The only thing missing, and what I'm searching, is about how and at what point of the ADC system there is a transition from single bit data to multiple bits of data. For example, how you get from single bit stream to 16 bit audio
Thank you for your question, that is indeed a very important question to fully understand Sigma-Delta ADCs. We can recommend, that you have a look at this website: www.analog.com/en/design-center/interactive-design-tools/sigma-delta-adc-tutorial.html There you can find a nice tool to "reproduce" the behaviour of a sigma-delta ADC step-by-step. In the example on the bottom of the website, they use a bit-stream which is 8-bit long, Vin=1.0V and Vref=2.5V. They receive a bit-stream of 1 0 1 1 1 0 1 1. We can see, that 6 of 8 outputs are high and 2 of 8 outputs are low. This means, that 75% of all outputs are high. Translating this back to a voltage would mean, that we are at 75% of the input range (in this case between -2.5V and +2.5V). Calculation gives Vout=-2.5V+5V*0.75=1.25V. If we are looking for a digital value: As we have 8 bits in the (unary) stream, this corresponds to 3 bits (=log2(8)) in a binary representation. In our case it would mean, that we would get a digital output value of 110 or 6 in decimal. Some more examples to understand the concept: unary -> binary 00000000 -> 000 10000000 -> 001 00000001 -> 001 00010000 -> 001 01010101 -> 100 10101010 -> 100 We hope this help in understanding the concept :)
In this video we only focussed on the basic principle of Sigma-Delta ADCs. Your question however, whether we can build a True Random Number Generator (TRNG) with these ADCs, is quite straightforward. It seems like there is some research [1], [2] ongoing in this topic, but we do not have any research experience there. So we would recommend having a look at current literature. [1] doi.org/10.1109/LSSC.2020.3010901 [2] doi.org/10.1109/ISCAS.2016.7527159
![กี่หมื่นฟ้า | Your Sky Series EP.1 [1/4]](http://i.ytimg.com/vi/vLGjxFL6U_I/mqdefault.jpg)
This video is part of the second course of our *ElectrONiX* massive open online course (MOOC) series.
You can sign up for the course *ElectrONiX - Digital* for free on the following link: imoox.at/course/digital
ElectrONiX MOOC series: imoox.at/series/electronix
The cafe analogy is genius. how have I never seen that before! Thank you :)
We are glad you like it :)
Often pictorial descriptions help to comprehend such complex things more easily.
I love it! Engineer has to stay caffinated to get through the day!
This video is so well made, that's a shame it hasn't more views. Anyway thank you, i have a project at school to present delta-sigma modulator and this video really explain the basics in an understandable way, with good diagramm and good analogy (coffe shop is awesome).
Thank you for your feedback. We are glad you like it :)
Feel free to share and recommend our videos to others.
Additionally we also develop a massive open online course series. The first course on amplifiers already started and is available at [1].
[1] imoox.at/mooc/local/landingpage/course.php?shortname=amps&lang=en
Great videos/knowledge related videos are Not meant to garner views like the cheap videos does.
Thanks to Michael and his colleagues for making this video. 😊😊😊 I couldn't unsubscribe. ❤❤❤
You are welcome. We are happy, that you like our channel :)
thank you for the crystal clear explanation. Very helpful
…sehr guter Kanal.
Macht weiter so.Sehr verständlich 👍🏻👍🏻👍🏻
This is such a great explanation, thank you for putting so much effort.
We are glad that you like our videos :)
Amazing explanation!
Congrats!. Your presentation is very good, since avoids complicated maths, understandable for not very high skilled but interested people as well. Great job!
Excellent presentation!
Thank you very much :)
very well explained
Great tutorial. Thank you so much!
many thanks for this informative and cristal clear explanations
You're welcome :)
So nice thanks sir
The only thing missing, and what I'm searching, is about how and at what point of the ADC system there is a transition from single bit data to multiple bits of data. For example, how you get from single bit stream to 16 bit audio
Thank you for your question, that is indeed a very important question to fully understand Sigma-Delta ADCs.
We can recommend, that you have a look at this website: www.analog.com/en/design-center/interactive-design-tools/sigma-delta-adc-tutorial.html
There you can find a nice tool to "reproduce" the behaviour of a sigma-delta ADC step-by-step.
In the example on the bottom of the website, they use a bit-stream which is 8-bit long, Vin=1.0V and Vref=2.5V.
They receive a bit-stream of 1 0 1 1 1 0 1 1. We can see, that 6 of 8 outputs are high and 2 of 8 outputs are low. This means, that 75% of all outputs are high. Translating this back to a voltage would mean, that we are at 75% of the input range (in this case between -2.5V and +2.5V). Calculation gives Vout=-2.5V+5V*0.75=1.25V.
If we are looking for a digital value: As we have 8 bits in the (unary) stream, this corresponds to 3 bits (=log2(8)) in a binary representation. In our case it would mean, that we would get a digital output value of 110 or 6 in decimal.
Some more examples to understand the concept:
unary -> binary
00000000 -> 000
10000000 -> 001
00000001 -> 001
00010000 -> 001
01010101 -> 100
10101010 -> 100
We hope this help in understanding the concept :)
🤝👍
Can we design TRNG using this?
In this video we only focussed on the basic principle of Sigma-Delta ADCs. Your question however, whether we can build a True Random Number Generator (TRNG) with these ADCs, is quite straightforward.
It seems like there is some research [1], [2] ongoing in this topic, but we do not have any research experience there. So we would recommend having a look at current literature.
[1] doi.org/10.1109/LSSC.2020.3010901
[2] doi.org/10.1109/ISCAS.2016.7527159
everybody tells one bit modulator which is useless to comprehend the issue
Thank you for your feedback. How would you prefer to describe it?