the input impedance of USB1_VBUS of AM335x?

shigehiro tsuda

Mastermind 9490 points

Hi,

Please tell me how much the input impedance of USB1_VBUS of AM335x is.

Best Regards,
Shigehiro Tsuda

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

Hi,

Please see this thread: e2e.ti.com/.../480630

0 shigehiro tsuda over 7 years ago in reply to Biser Gatchev-XID

Mastermind 9490 points

Hi Biser,

Thank you for quick reply.
There is the following answer when I refer to the thread of your introduction.
It is like AM437x, is AM335x similar, too?

"This parameter is not specified, but per USB OTG specification VBUS is required to have an impedance to ground in the range of 40k ohms to 100k ohms."

Best Regards,
Shigehiro Tsuda

0 peaves over 7 years ago in reply to shigehiro tsuda

TI__Guru 55435 points

Yes, they are the same. The VBUS input impedance is in the range of 40k - 100k ohms with respect to the VSSA_USB terminal.

Regards,
Paul

0 shigehiro tsuda over 7 years ago in reply to peaves

Mastermind 9490 points

Hi Paul,

Thank you for quick reply.
I understood your answer.
Thank you for your kind and quick support.

Best Regards,
Shigehiro tsuda

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the input impedance of USB1_VBUS of AM335x?