Saidera
Senior Member
- Thread Starter
- #21
https://www.cirrus.com/company/medi...udio-quality-to-mobile-and-pro-audio-devices/
https://www.planetanalog.com/digital-audio-evolves-back-to-the-single-bit-element-dac/
This is intriguing.
Cirrus Logic’s CS43130 was widely advertised to investors, so there were some inner details revealed, unlike CS43131, which came quietly.
Cirrus Logic designers improved the 1-bit DAC, they crafted 512 single-cell DACs into this architecture which reduces jitter degradation of good audio sound. The IC also filters out unwanted noise through each of the 512 DACs in sequence. In the earliest days of the compact disc, DACs did not employ oversampling, and thus most of the image energy removal was done with a high order analog circuit.
Multiple level one bit DACs is also a method used in S-Master amps.
But someone said: where's the detail on the CS43130? “512 single-cell DACs” sounds like an interesting approach but there's no clue about how it actually works. I tried finding some information on the web but what I found was that “512 single-cell DACs” is simply a bit of investor bait. Cirrus has a product page but it has no detail either.
Thanks for your interest in the CS43130 hi-fi DAC. It's always good to see discussion taking place! As you noted, the data sheet for this product is by request on our website, and we do that primarily because of competitive reasons. It's a support request form that gets channeled to a sales rep for follow up. Regarding the 512 single-cell DAC elements that form the DAC architecture of the CS43130, they're designed in a sequential method so that each element uses a clean clock source as it's reference and doesn't inherit jitter from the previous element, so that by the end of the 512 element chain, the audio signal is clean. In addition the elements sequentially filter out the unwanted frequencies to stop them affecting the wanted audio frequencies. The hard task is designing the element architecture, plus hooking them up together in such a way as to make this work and at the same time, make sure the actual sound produced from the DAC is as good as possible. If you'd like to follow up with me at I'd be glad to provide additional technical information and see what we can do to answer your questions.
Given this detail, one can begin to understand why the Cirrus way may be equated to S-Master more than ESS.
https://www.planetanalog.com/digital-audio-evolves-back-to-the-single-bit-element-dac/
This is intriguing.
Cirrus Logic’s CS43130 was widely advertised to investors, so there were some inner details revealed, unlike CS43131, which came quietly.
Cirrus Logic designers improved the 1-bit DAC, they crafted 512 single-cell DACs into this architecture which reduces jitter degradation of good audio sound. The IC also filters out unwanted noise through each of the 512 DACs in sequence. In the earliest days of the compact disc, DACs did not employ oversampling, and thus most of the image energy removal was done with a high order analog circuit.
Multiple level one bit DACs is also a method used in S-Master amps.
But someone said: where's the detail on the CS43130? “512 single-cell DACs” sounds like an interesting approach but there's no clue about how it actually works. I tried finding some information on the web but what I found was that “512 single-cell DACs” is simply a bit of investor bait. Cirrus has a product page but it has no detail either.
Thanks for your interest in the CS43130 hi-fi DAC. It's always good to see discussion taking place! As you noted, the data sheet for this product is by request on our website, and we do that primarily because of competitive reasons. It's a support request form that gets channeled to a sales rep for follow up. Regarding the 512 single-cell DAC elements that form the DAC architecture of the CS43130, they're designed in a sequential method so that each element uses a clean clock source as it's reference and doesn't inherit jitter from the previous element, so that by the end of the 512 element chain, the audio signal is clean. In addition the elements sequentially filter out the unwanted frequencies to stop them affecting the wanted audio frequencies. The hard task is designing the element architecture, plus hooking them up together in such a way as to make this work and at the same time, make sure the actual sound produced from the DAC is as good as possible. If you'd like to follow up with me at I'd be glad to provide additional technical information and see what we can do to answer your questions.
Given this detail, one can begin to understand why the Cirrus way may be equated to S-Master more than ESS.