• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 21 subscribers
  • Views 807 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMK00101 / Vddo(BankA/BankB) pins

Toshiyuki
Mastermind 7075 points

Hi,

Does this NOTE means that BankA and BankB are internally connected,or not?

I would operate only BankA or BankB power in abnormal conditions.

At that time, the other Bank* would be disconnected.

Best Regards,

Kato

 

  • 0
    TI__Genius 10320 points

    Hi Kato-san,

    Each output bank has 2 Vddo supply pins. Bank A (CLKout0/4) is powered by Vddo pins 2 and 6 while Bank B (CLKout5/9) is powered by Vddo pins 19 and 23.

    What this note means to say is that ALL Vddo pins need to be supplied with at least 1.425V per the Recommended Operation Conditions in the DS, but Vddo < Vdd. So pins 2 and 6 are connected internally while pins 19 and 23 are connected internally.

    Hopefully this clears up the confusing wording.

    Gabe

  • 0
    TI__Mastermind 24205 points

    Hi Kato-san,

    Sorry that the datasheet is not very clear. What it is basically saying is that

    Pins 2 and 6 (Vddo for Bank A) can be connected together, left floating or grounded. Whatever you do with one of these pins has to be followed with the other pin as well).

    Pins 19 and 23 (Vddo for Bank B) can be connected together, left floating or grounded. Whatever you do with one of them has to be done on the other as well).

    Example: Bank A Vdd pins can be supplied with 1.5V-3.3V while Bank B Vdd pins can be left floating.

    Regards

    Arvind Sridhar

  • 0 in reply to Arvind Sridhar
    Mastermind 7075 points

    Hi Gabe-san,Arvind-san,

    Thank you for the reply.

    In conclusion,could BankA Vdd pins be supplied with 1.5V-3.3V while BankB Vdd pins be left grounded?

    When BankB Vdd isn't supplied power(≒grounded), we would prevent CLKout5,6,7,8,9 output.

    Meanwhile,We would supply BankA Vdd power and　enable only CLKout0,1,2,3,4. 

    Best Regards,

    Kato

  • 0 in reply to Toshiyuki
    TI__Mastermind 24205 points

    Hi Kato-San,

    Bank B Vdd pins could be grounded but we would still recommend floating them.

    Regards

    Arvind Sridhar