CESY’s USB 3.0 Isolator

[Music1969]

I just use an optical USB cable extender, or a C to C to a powered hub. They've come down so far in price. Also you can use short USB cables to a DAC for best performance if the hub is next to it.

These extenders are for sale used for $43

Amazon.com

Another for $49

Amazon.com

I've bought those and using a Fibbr cable to the hub now. They either go on 50 percent off sale frequently or used always worked the 3 I bought that way for $33-$36 instead of $100. The new generation are better than the first gen Corning optical, these carry optical for data but also USB 3.0 for power. The demand from people with VR headsets created more competition and also adding power to charge the headsets in use. You just can't use adapters with optical cable or it causes timeout errors. With a hub it's not a problem, just the C to A or C to B adapters will cause problems.

Optical cable extenders don't isolate ground - so not galvanic isolation

 

[cesand]

Uses ADUM3165 ?

No, but simply because delivery times of nearly any Analog Devices component in the last years has been ... not optimal. So we went with the solution from TI and we are very happy with it so far.

None at all, but some contributors to this forum would advocate using an isolator between the PC and DAC as a matter of course. It's my view if you have problem with hum and noise then it is worth trying an isolator, but don't bother is there is no problem.

For me the HS02 is good enough, when required. However it is only rated to 1.5kV.

Is guess that is the isolation voltage rating? Just for comparison, the ISO-U20's isolation voltage is 2 kVDC and 500 VAC (at 50 Hz). If you look for more, the ISO-U30 with its 5 kVDC and 3 kVAC (at 50 Hz) might be of interest for you. Our devices are tested according to EN 62368-1 in a laboratory, so these values are valid for up to 1 minute of stress.

I've only ever owned three devices from Topping. Two out of the three are now defunct (HS01 and PA5). HS02 is still functional.

May I ask how old these devices are? We have sold quite big numbers of our first-generation USB-Isolators and hardly got any returned.

 

[KSTR]

Replaced Topping HS01 which ran hot, and eventually let out tons of acrid smoke after overheating (all while sitting idle!)

My two HS01s are still working but I'm prepared to see them fail sooner or later as they get really hot to the touch after a while.

 

[Sokel]

Got his USB 2.0 high-speed (480Mbps) isolator, inexpensive ($30). Works well, had it for 2-3 months now. Doesn't heat up, breaks up ground loops, and seems not to affect sensitive measurements:

https://www.amazon.com/DSD-TECH-SH-G01L-Isolator-Isolation/dp/B0CSYNSZ3K

Replaced Topping HS01 which ran hot, and eventually let out tons of acrid smoke after overheating (all while sitting idle!)

Just smoke?
Not even a little explosion?

Pfff,Topping is no fun

Seriously now,friends here has to check how much power an isolator can deliver apart from the speed if their devices are USB powered.
Dacs may be on the low side (but can go up depending what they are playing) but stuff like interfaces can easily reach the limits of the nominal 500mA of a USB2 port,let alone when that is reduced.

 

[pkane]

Just smoke?
Not even a little explosion?

Pfff,Topping is no fun

Seriously now,friends here has to check how much power an isolator can deliver apart from the speed if their devices are USB powered.
Dacs may be on the low side (but can go up depending what they are playing) but stuff like interfaces can easily reach the limits of the nominal 500mA of a USB2 port,let alone when that is reduced.

Considering nothing was plugged into it when it went up in smoke, I suspect the current drawn was a lot lower than 500mA

 

[GandalfTheAudiofool]

I just use an optical USB cable extender, or a C to C to a powered hub. They've come down so far in price. Also you can use short USB cables to a DAC for best performance if the hub is next to it.

These extenders are for sale used for $43

Amazon.com

...

Does that work? On that link it shows that only the data cable uses an optical link. The problem is usually the power cable no? If there's something noisy on the power cable, wouldn't that still make it to the DAC with such an optical extender?

 

[Dunring]

Does that work? On that link it shows that only the data cable uses an optical link. The problem is usually the power cable no? If there's something noisy on the power cable, wouldn't that still make it to the DAC with such an optical extender?

I've got two sets of these:
Phoossno optical USB cable (currently used for $43)

Amazon.com

Yottamaster USB hub $20 new

Amazon.com

The cable works for data and power, but this hub has two USB C so you can plug into it, or add up to a 3 amp power supply on the other side for things like hard drives, etc. The noise floor even from a gaming computer is black silence. Everything sounds better and it's really convenient since you can locate the hub anywhere for short USB cables to the DAC, and away from other electronics. I've used it on everything from an Apple 3.5mm adapter to the D70Pro Octo DAC. The only thing it doesn't work with it C to B (like most Topping DACs or C to A female adapters. Run it direct to a DAC or into a hub and it's flawless.

 

[MC_RME]

Got his USB 2.0 high-speed (480Mbps) isolator, inexpensive ($30). Works well, had it for 2-3 months now. Doesn't heat up, breaks up ground loops, and seems not to affect sensitive measurements:

https://www.amazon.com/DSD-TECH-SH-G01L-Isolator-Isolation/dp/B0CSYNSZ3K

Replaced Topping HS01 which ran hot, and eventually let out tons of acrid smoke after overheating (all while sitting idle!)

I assume 'his' should have been 'this'?

It's available at Amazon Germany as well:

https://www.amazon.de/DSD-TECH-SH-G01L-USB-Isolator-High-Speed-Isolierung-480-Mbit-s/dp/B0CSYNSZ3K/

Unfortunately zero mentioning of how much current can be drawn on the isolated side.