DAC39RF12EVM: How to configure LMK04828 via GUI?

Hello,

My customer is a bit in a hurry to keep their development schedule and would like to start DAC39RF12EVM evaluation asap.
If TI could respond their questions quickly, it would be nice and appreciated.

Best regards,

K.Hirano

Hirano,

You don't.  It is automatically configured by how the GUI sets up the DAC.

Regards,

Geoff

Geoff,

Thank you for your response. But your answer is too simple for me to understand it well.
If you could provide more details, it would be very appreciated.

Best regards,

K.Hirano

Hirano,

They don't directly program the LMK.  When the GUI configures the DAC, the LMK is configured to the correct mode for that particular mode of the DAC.

Regards,

Geoff

Geoff,

My customer requirements are as follows.
- SYSREF: 7.8125MHz
- Reference clock: 250MHz
- Sampling rate: 8Gsps (Interpolation: 8)
They set the GUI as follows, but they were not able to get the desired frequencies, and SYSREF was not generated since SYSREF_PD bit is 1. What are wrong in their GUI setting?
Please let them know the proper GUI settings to achieve their requirements.


Best regards,

K.Hirano

Goeff,

My customer is awaiting your feedbacks on this.
please let them know the proper GUI settings to achieve their requirements.

Best regards,

K.Hirano

Hirano-San, 

The DAC39RF12 GUI does not have controls for setting up the LMK. It generates the clocks needed for the generic firmware. 

Regards, 

Matt