Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

  • State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 171 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.

DAC3482: NCO frequency change time

Kazuhiko Hirano
Genius 13358 points
Part Number: DAC3482

Hello,

Q1:
How much is the maximum SCLK frequency spec?

Q2:
After NCO frequency is written in the register via SPI, how much time does it take for the NCO to change its frequency to the written frequency from the previous frequency?

Best regards,

K.Hirano

  • 0
    TI__Guru 71609 points

    Hirano-san,

    Kazuhiko Hirano said:
    Q1:
    How much is the maximum SCLK frequency spec?

    Please see specification below. Typically maximum is 10MHz, except for reading temperature sensor register 0x06 needing 1MHz maximum rate.

    Kazuhiko Hirano said:
    Q2:
    After NCO frequency is written in the register via SPI, how much time does it take for the NCO to change its frequency to the written frequency from the previous frequency?

    Please see section 3.4 of the app note below. There are various sync source selection methods that determines the next frequency counter update.

    www.ti.com/.../slaa584.pdf