Other Parts Discussed in Thread: HD3SS6126, TS3USB221E, TS3USB221A, TS5USBC41, TS3USB3031
I used HD3SS3202IRSV to USB 2.0 interface as a switch, we can see the eye diagram is pretty good after pass HD3SS3202, but the USB 2.0 devices could not be scanned and detected.
Then I added pull-low resistor about 4.7K on the D- signal, the USB 2.0 high speed device can be identified.
So my questions are :
- Could HD3SS3202IRSV only be used for USB3.0 application, but not USB 2.0 application? what is the reason behind?
- Whether it has other risks if used to USB 2.0 high speed application with add pull down resistor on D-? I don't want to change PCB.
- Could you recommend a USB switch for 2.0 application, but the capacitance will be around 1pF ?
- If I add a USB switch, what's the parameter of the switch can impact signal quality? Ron, Con, bandwidth?
- Could you recommend a USB switch for 2.0 application?