hi,ti
I am using dac38rf89 in L-M-F-S-HD =82121 (2 TX mode);
costomer board
dac config as followed:
differential input clk :2Ghz
pll on chip unused, dac clock frequency 2Ghz,directly derived from differential input clk
dual dac, real input, 4 serdes lanes per dac;
interpolation x1
serdes line rate 10Gbps
sysref frequency 3.125M
k=20
now I do believe JESD TX side have finished CGS and ILAS, establish the link. I checked alarm registers it looked like all right,volage of Rbias = 0.9v,but both dac has no output?
1、 can you give me a recommended cfg file of above dac config,I check again
2、 another question I found I config 0x40a, as 0xfc03 , JESD link failed,but onfig 0x40a ,as 0xfc00 JESD link successed,how could I config 0x40a
3、 Is it related to other config or other part of circuits, can you give me some advice?
Regards,
mumu