TUSB4041I: feedback resistor between XI and XO

K.Yaita

Part Number: TUSB4041I

Hi Team,

I believe R1 value in Figure 2 is typo and 1Mohm is correct.
Is my understanding correct?

Best Regards,
Yaita

over 6 years ago

0 David (ASIC) Liu over 6 years ago

TI__Guru**** 182631 points

Yaita-san

The recommended R1 resistor is 1M. But R1 value should be chosen such as that R1 value is above the point where loading begins to pull the frequency.

Thanks

David

0 K.Yaita over 6 years ago in reply to David (ASIC) Liu

Guru 29720 points

Hi David-san,

Thank you for your reply however I couldn't catch the following cleary.
>R1 value should be chosen such as that R1 value is above the point where loading begins to pull the frequency.

Is there any application note about it?

Best Regards,
Yaita

0 David (ASIC) Liu over 6 years ago in reply to K.Yaita

TI__Guru**** 182631 points

Yaita-san

Please see this app note from Crystek: https://www.crystek.com/documents/appnotes/pierce-gateintroduction.pdf.

Thanks

David

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TUSB4041I: feedback resistor between XI and XO