How do we mix both USB2.0 and USB3.0 port connections?

[kakiitek]

Dear all,
Would like quick confirmation of the connection method below. Pretty confused with USB3.0 especially Type-C.

Figure 1 is the our attempt in connecting to a USB3.0 Type C.
Questions - Are there any chips that will combine both the Mux/De-mux and Channel Configuration Logic into a single chip?

Figure 2 is for additional USB2.0 port.
Question - Would the use of the USB2.0 Hub Controller be appropriate?
Is it right for us to assume the use of USB3.0 Hub is unnecessary?

Figure 3 - This would be using a USB3.0 Hub
Question - Can we confirm that the use of the USB3.0 Hub is unnecessary?

Figure 4 - Same configuration as Figure 3. However, we are now having an additional USB3.0 Type-A.
Questions - Is there issue with such connection?

Appreciate if anyone could help out. In addition, assuming we could ensure a line impedance of 90 Ohm for the differential pairs, is there any specification on the maximum length that we could route?

Many thanks.
Best rgds,
KAKIITEK

 

[BradtheRad]

Presumably your central device is intelligent and negotiates with peripherals so as to determine whether a device can use the more advanced protocol.

Unless you plan to become expert in all USB protocols, then you need to invest in a central device which is equally up-to-date with your peripherals.

 

[kakiitek]

Hi Brad, thanks for responding.
Looks like I could not get verification from anyone on the above connections and the corresponding questions.
Would need to search elsewhere. Thanks. again.