TMUXHS4446: Inquiry on USB Architecture Solution

Boris Chou

Part Number: TMUXHS4446
Other Parts Discussed in Thread: TUSB1146

Tool/software:

Hi TI,

We are in the process of planning our next-generation device and have encountered challenges with the USB architecture and configuration, which directly affect platform selection.

The SoC we have selected provides only a single USB 3.0 interface with support for Alt Mode (DisplayPort). Our goal is to split this single USB interface into three connectors with the following configuration:

Type-C (Port 1): Supports USB 3.0 and DisplayPort.
Type-C (Port 2): Supports USB 2.0 with OTG.
Type-A: Supports USB 2.0 with OTG.

Please review our initial block diagram and provide recommendations on the appropriate total solution for our design.

Any feedback is welcome.

Best,

Boris

7 months ago

0 Kameron Hill 7 months ago

TI__Mastermind 24440 points

Hi Boris,

The TMUXHS4446 is a appropriate device to use here because it can USB3.2 which also bean it can support the data rates of USB 3 and USB2 data rates.

Is there any other concern you have in using the TMUXHS4446 and why do you need the Crosspoint functionality of this device in your system?

I can take a further look into this if there is ?

Do any of these other multiplexers look of interest to you?

Regards,

Kameron

0 Boris Chou 7 months ago in reply to Kameron Hill

Prodigy 85 points

Hi Kameron,
Thank you for the information. Since TI has a wide range of related ICs, I am unsure which specific the part number corresponds to the block diagram I provided.

Could you help identify the appropriate IC based on the diagram?

If anything is unclear, please let me know.
Thanks.

0 Boris Chou 7 months ago in reply to Boris Chou

Prodigy 85 points

Update the block diagram

0 Kameron Hill 7 months ago in reply to Boris Chou

TI__Mastermind 24440 points

Hi Boris,

Understood and with the updated block diagram you have I think we need to loop in the HSSC team as they have more knowledge about TI USB HUB solutions.

Regards,

Kameron

0 Brian Zhou 7 months ago in reply to Kameron Hill

TI__Guru*** 146565 points

Hi Boris:

First, TI hub don't support OTG.

2nd, display port is source or sink application?

Best

Brian

+1 Boris Chou 7 months ago in reply to Brian Zhou

Prodigy 85 points

Hi Brian,
It's sink application, our device provide the source to an external monitor via Type-C.

0 Brian Zhou 7 months ago in reply to Boris Chou

TI__Guru*** 146565 points

It should be source if connected to external monitor.

TMUXH4446 or TUSB1146 is the right pat for type-C port.

Best

Brian

Interface

Interface forum

TMUXHS4446: Inquiry on USB Architecture Solution