• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 10 subscribers
  • Views 364 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.

AFE7444: "DAC Jesd configuration"

Jong-min Kim
Prodigy 70 points
Part Number: AFE7444
Other Parts Discussed in Thread: AFE7686,

I want to use DAC Jesd mode (L_M_F_S_HD 1TX = 22210x24 HBW).

The datasheet says that the mode (22210x24 HBW ) is available, but "Register Programming for JESD and Interpolation Mode" doesn't have a value for that item.

According to the "register set Manual", the following calculation was applied, but a Jesd configuration error occurred.

JESD_MODE(B"01011"),

JESD_PHASE_MODE(B"11")

CLKJESD_DIV(B"101")

CLKJESD_OUT_DIV(B"110")

INTERP_FRONT(B"010")

INTERP_BACK(B"1")

This value is the value that worked normally in the previous AFE7686.

I hope for your help in this regard.

thank you

  • 0
    TI__Genius 11930 points

    Hi Jong-min,

    I believe that the mode you are requesting is similar to Mode 6 mentioned in the datasheet. Once you load Mode 6 using the AFE7444 GUI you should be able to see how the registers are configured for your mode of interest. 

    Regards,

    David Chaparro