TUSB7320: Unconnected USB stream without software disbling

alexis fronteau

Part Number: TUSB7320

Hi,

Is there any recommendations about input/output connection of an unused stream (for EMI purpose for example) ?

Does it must be disabling in the register or do I have to connect the I2C interface and change registers ?

Is it normal that the component heat increase significantly ?

Thanks,

0 Brian Zhou over 6 years ago

no, you don't need to disabling the register the port unused.

did you solder down the thermal gound pad?

0 alexis fronteau over 6 years ago in reply to Brian Zhou

Thanks for your reply,

So I can left unconnected all the pins relatives to the second stream ?

Yes I've soldered the thermal pad but it still heat up.

0 Brian Zhou over 6 years ago in reply to alexis fronteau

yes, you can left unconnected pins open.

can you measure the temperature?

0 alexis fronteau over 6 years ago in reply to Brian Zhou

Great !

I am waiting for a temperature probe to tell you the temperature, but I have a consumption of 180mA without plugging any usb, is it too much ?

0 Brian Zhou over 6 years ago in reply to alexis fronteau

it's normal since PCIe port is working

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