Hello,
I have some trouble with the dac38j84 configuration :
When i read the config108 register, i get 0x0007 (i do not use the serdes block 1,) which means the serdes PLL lock fine, but not the DAC PLL.
I can"t find why the DAC PLL won't lock, do you have any idea why?
In attachment the registers as i write them.
The DACCLK is running at 307.2 MHz and i want to run only DAC A and B with a 421(LMF) JESD204B.
0x00 0x0208 #config0 0x02 0x2080 #config2 0x1A 0x0007 #config26 0x22 0x1B1B #config34 0x23 0x0000 #config35 0x24 0x0000 #config36 0x25 0x0000 #config37 0x31 0x6408 #config49 0x32 0x0F00 #config50 0x33 0x0084 #config51 0x3B 0x0000 #config59 0x3C 0x0050 #config60 0x3E 0x0040 #config62 0x4A 0x0F3E #config74 0x4B 0x0000 #config75 0x4C 0x1F03 #config76 0x4D 0x0100 #config77 0x51 0x0000 #config81 0x6C 0x0000 #config108 0x4A 0x0F01 #config74
Thanks,
Regards
Mathieu Hanicotte