JohnW
pfm member
USB Detoxification
"Detoxification is one of the more widely used treatments and concepts in alternative medicine. It is based on the principle that illnesses can be caused by the accumulation of toxic substances (toxins) in the body. Eliminating existing toxins and avoiding new toxins are essential parts of the healing process. Detoxification utilizes a variety of tests and techniques."
The idea of the Detox is to remove multiple layers of noise on the USB interface by various methods:-
First the incoming USB signal is RF filtered then passed to a USB Hub IC that is powered by its own Lowe noise PSU and feed by a low phase noise clock. This USB Hub IC buffer the output USB Data from the "jittery" input Data - the Phase noise of the output Data is an "attenuated" version of the input phase noise.
The process is repeated through two more USB hubs (x3 in total), at each stage the RF and input Phase noise is attenuated.
The Hub device used has two High Speed USB 2.0 480Mbps outputs. The first is directly RF Filtered and avaible as a USB 2.0 non isolated output.
The second output from the final USB Hub, RF filtered and fed to a USB 1.1 (12Mbps) Galvanic isolation device, RF filtered and then output'ed on the second USB connector (Galvanically isolated, but limited to a maximum supported data rate of 96KHz 24 Bits).
The Detox also provides a Very low noise 5V supply for Self powered DAC's and USB sections (as will be the case for the FDAC).
The internal circuits of the USB hub IC's are not designed for the lowest phase noise, so even when feed by a clean PSU and Clock they will still have an unwanted Jitter level whose phase noise will be related to the incoming Data / and the phase noise of the Host device - we will add a "Spread Spectrum" clock mode that adds Random noise to the clock to "Bury" individual spuire components.
The Detox offers a galvanically isolation USB 1.1 12Mbps output - perfect for the MDAC1 or any DAC if your OK with a limit of 96KHz sample rate.
You can do you will help improve our cash flow and it might be the final icing on the cake - but if you heard a difference by using a second Detox (which would not surprise me) it would also indicate that the Detox does not offer perfect Detox = "attenuation" of unwanted artefacts.
I've been careful to state "Attenuation" of the Detox and not 100% isolation... its not possible in the real world to have 100% attenuation as its the nature of "RF" to radiate
"Detoxification is one of the more widely used treatments and concepts in alternative medicine. It is based on the principle that illnesses can be caused by the accumulation of toxic substances (toxins) in the body. Eliminating existing toxins and avoiding new toxins are essential parts of the healing process. Detoxification utilizes a variety of tests and techniques."
I am sorry for my questions regards this Detox think. But I did not see the advantages. .....
What is the advantages to reclock the data within the transport to the fdac? The fdac will do the job anyway....
The idea of the Detox is to remove multiple layers of noise on the USB interface by various methods:-
First the incoming USB signal is RF filtered then passed to a USB Hub IC that is powered by its own Lowe noise PSU and feed by a low phase noise clock. This USB Hub IC buffer the output USB Data from the "jittery" input Data - the Phase noise of the output Data is an "attenuated" version of the input phase noise.
The process is repeated through two more USB hubs (x3 in total), at each stage the RF and input Phase noise is attenuated.
The Hub device used has two High Speed USB 2.0 480Mbps outputs. The first is directly RF Filtered and avaible as a USB 2.0 non isolated output.
The second output from the final USB Hub, RF filtered and fed to a USB 1.1 (12Mbps) Galvanic isolation device, RF filtered and then output'ed on the second USB connector (Galvanically isolated, but limited to a maximum supported data rate of 96KHz 24 Bits).
The Detox also provides a Very low noise 5V supply for Self powered DAC's and USB sections (as will be the case for the FDAC).
The internal circuits of the USB hub IC's are not designed for the lowest phase noise, so even when feed by a clean PSU and Clock they will still have an unwanted Jitter level whose phase noise will be related to the incoming Data / and the phase noise of the Host device - we will add a "Spread Spectrum" clock mode that adds Random noise to the clock to "Bury" individual spuire components.
Having in mind that the Detox offers no galvanic isolation.
The Detox offers a galvanically isolation USB 1.1 12Mbps output - perfect for the MDAC1 or any DAC if your OK with a limit of 96KHz sample rate.
And use anyone one of these Detox at the beginning and end of a USB cable?
You can do you will help improve our cash flow and it might be the final icing on the cake - but if you heard a difference by using a second Detox (which would not surprise me) it would also indicate that the Detox does not offer perfect Detox = "attenuation" of unwanted artefacts.
I've been careful to state "Attenuation" of the Detox and not 100% isolation... its not possible in the real world to have 100% attenuation as its the nature of "RF" to radiate