Hello, I have reviewed the AWR294x Technical Reference Manual v1.0 and found that the description of the SSC function is "SSC is not supported". Does the AWR2944 support the SSC function?
Thank you and best wishes.
Hi，
Thank you for contacting TI E2E China forum.
You can refer to TRM 3098 page "Spread Spectrum Clocking" https://www.ti.com/lit/ug/spruiv5c/spruiv5c.pdf#page=3098
SSC could be used to mitigate spurs caused by the clock generated by a particular ADPLL. If you spread the Core ADPLL clock, that clock is also used to generate the frame timing of the front end. So the frame timing would also be dithered with Core ADPLL SSC. If you are using clocks from other ADPLLs for any of the interfaces, spreading those clocks would dither the interface clocks as well.
In general, we dont recommend enablling SSC by default, use it only if you are seeing an emission issue.