hi,
i am doing a bachelor degree in electronics, and thought it would be very cool do build myself a dac to go along with my diy hifi speakers. maybe i can use this project as my thesis.
is it doable? i am not just looking to put a board into a box and call it the day as some of the diy kits seem to be.
i am not really sure where to start though.. i have no specific budget, so let's say under a 1000 bucks.
ESS Sabre ES9038PRO seems to be a 'go to' chip, correct? is this really the best? it's about 90 euros
i am doing a bachelor degree in electronics, and thought it would be very cool do build myself a dac to go along with my diy hifi speakers. maybe i can use this project as my thesis.
is it doable? i am not just looking to put a board into a box and call it the day as some of the diy kits seem to be.
i am not really sure where to start though.. i have no specific budget, so let's say under a 1000 bucks.
ESS Sabre ES9038PRO seems to be a 'go to' chip, correct? is this really the best? it's about 90 euros
Start by sorting 5W power resistors to 0.1% tolerances, and make the world's biggest R2R 'powerDAC'?
Is that the way to go? Sounds like the power consumption Will be astronomical. R2r, capacitor dac or delta sigma - is r2r the ’go to’?
What resistance value is ideal? I have access to the laboratory on my school that i can use to measure them, with bench multimeters although they have not been calibrated in like 5 years. Lower resistor values seems to be better, or ’faster’ but will increase power consumption
What resistance value is ideal? I have access to the laboratory on my school that i can use to measure them, with bench multimeters although they have not been calibrated in like 5 years. Lower resistor values seems to be better, or ’faster’ but will increase power consumption
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Hi!
I'm actually designing a DIY friendly ESS DAC, see: https://www.diyaudio.com/community/threads/es9017-27-dac-design.418443/
If your aim is something satisfying to listen to then multibit (often called 'r2r' somewhat loosely) is the choice to make in general. With a budget of $1000 you could spend 10% of that on the DAC chips which would get you many hundreds of these TDA1387s to parallel - https://www.aliexpress.com/item/10000295203425.html
Come to think of it, these modules with 8 TDA1387s already soldered could be a quicker way to get going (saving time on dozens of soldered joints) and they're being strongly discounted : https://www.aliexpress.com/item/1005006445737732.html
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I'm not sure what the requirements for the thesis are, but I guess you have to do a bit more than building someone else's design or building a standard application of a DAC chip then. Presumably you have to read up on different DAC types, make up your own mind on what you want to make, design it and give arguments for your design choices.
Maybe this article could be of use: https://linearaudio.net/sites/linearaudio.net/files/03 Didden LA V13 mvdg.pdf
If you would build it, you would end up with an audio DAC, but you would exceed your budget and you would have a hard time explaining why you used 70-year-old technology for the analogue and mixed-signal parts 😉
If you just read it and look up a couple of references, you will learn a thing or two about audio DAC design, especially sigma-delta DACs.
If you would build it, you would end up with an audio DAC, but you would exceed your budget and you would have a hard time explaining why you used 70-year-old technology for the analogue and mixed-signal parts 😉
If you just read it and look up a couple of references, you will learn a thing or two about audio DAC design, especially sigma-delta DACs.