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Hmm, unfortunately not USB 2.0 "High Speed"

Posted by AbeCollins (A) on September 8, 2017 at 04:07:04

In Reply to: Well posted by Dynobot on September 7, 2017 at 18:51:45:

"According to this drawing my Analog Devices their USB isolator low and full speed was dated 04-21-2014"

The schematic / design using Analog Devices (LTC) parts does not support USB 2.0 "High Speed" which is necessary to pass hi-rez audio beyond 24/96. Just for clarity, Intona does not use the Analog Devices (LTC) parts or their sample design.

And to reiterate, Intona was the first to market with a USB 2.0 galvanic isolator that supports USB 2.0 "High Speed". They use a bare Silicon Labs (dumb) isolation device supported by their own FPGA's for protocol conversion and support logic.

Per Silicon Labs literature:

Silicon Lab's family of ultra-low-power digital isolators are CMOS devices offering substantial data rate, propagation delay, power, size, reliability, and external BOM advantages over legacy isolation technologies. The operating parameters of these products remain stable across wide temperature ranges and throughout device service life for ease of design and highly uniform performance. All device versions have Schmitt trigger inputs for high noise immunity and only require VDD bypass capacitors. Data rates up to 150 Mbps are supported, and all devices achieve propagation delays of less than 10 ns. Ordering options include a choice of isolation ratings (2.5, 3.75 and 5 kV) and a selectable fail-safe operating mode to control the default output state during power loss. All products > 1 kV RMS are safety certified by UL, CSA, VDE, and CQC, and products in wide-body packages support reinforced insulation withstanding up to 5 kV RMS.

Intona USB 2.0 "High Speed" Isolator:

This post is made possible by the generous support of people like you and our sponsors:

Atma-Sphere Music Systems, Inc.

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