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USB Isolation Hub ADUM4160+CH334

Overview

The ADUM4160 is used for USB isolation to ensure computer safety during experimental debugging.
The hub chip is CH334R, supporting high-performance MTT mode.
The power supply is an IB05_S-2W isolated power module.
This hub has 7 interfaces, 3 of which are 480Mbps full speed but not isolated, and 4 are 12Mbps full speed with complete data and power isolation.

The IB05_S-2W isolated regulated power supply is recommended for isolation.
Note that some isolated power supplies are "isolated unregulated power supplies," and their output voltage fluctuates with the power rating. They can still be used and function without problems.
To prevent voltage fluctuations from affecting the isolation chip, an ME6211 is used to step down the voltage to 3.3V to power the ADUM4160.

Because the isolated power supply has significant ripple under no-load, a resistor is added as a load.

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Update:2026-03-27 03:41:12

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