TS3USB221: TS3USB221 connects to USB1.1 device

Johnson Chang

Part Number: TS3USB221

Hi all,

I'm Johnson, I'd like to know that if Port 1D+/1D- connects to USB1.1 device,

Is necessary to connect resistance (28~44 ohms) for each driver output at the Full speed?

Best Regards,

Johnson

0 Brian Zhou over 2 years ago

Johnson:

you don't need any additional resistance for Mux.

Regard.

Brian

0 Johnson Chang over 2 years ago in reply to Brian Zhou

Hi Brian

Does TS3USB221 can detect singal of USB1.1 or USB2.0?

Best Regards,

Johnson

0 Brian Zhou over 2 years ago in reply to Johnson Chang

Johnson:

TS3USB221 can not detect US1.1 or USB2.0 signal, it just pass though USB signal.

Regards,

Brian

0 Johnson Chang over 2 years ago

Hi Brian,

Please see below circuit figure, 1D+/1D- and 2D+/2D- connect to series resistance for each pin. Is it correct way? Thanks

Best Regards,

Johnson

0 Brian Zhou over 2 years ago in reply to Johnson Chang

John:

It's fine if 33 ohm resistors are required for USB FS.

Regards

Brian

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