Part Number: DS125DF410 We are using the chip's PRBS generator functions in free VCO running mode (without signals at its input ports). In general it works great and stable. But occasionally, it can stop outputting the PRBS signals. We don't exactly know…
Part Number: DS125DF410 We are working on the PCB layout and would like to confirm if we can use FR4 for all the layers. We have the DS125DF410 evaluation board on hand and noticed that the color of the top layers is quite different from the color of…
Part Number: DS125DF410 Hi TI Team,
Could you let us know how to estimate/measure (by using the chip's functions) the data rates of the signals as seen by the inputs of the chip? Let's assume that the incoming signals are all locked by the CDRs.…
Part Number: DS125DF410 Other Parts Discussed in Thread: DS250DF410 We have been using SigCon Architect to read the eye patterns of the incoming signals, and found that using various ways to visualize the data can provide a lot of insights to the signal…
Part Number: DS125DF410 Hi TI Team,
We tried to plot the eye diagrams in heatmap format and noticed higher than normal BER during bit transition. It does not seem to make sense. Can you explain to us why this happens? Is it normal and expected?
Thanks…
Hi Rodrigo Natal,
Sorry for the delay.
I have zipped S-parameter models with a short ppt for you to understand the different models can be related to the different parts in the schematic.
TI_Collateral.zip 2185.DS125DF410.cfg
Thanks,
Sathish
Part Number: DS125DF410 Hi TI Team,
We are trying to output PRBS under free-running VCO mode on Channel 0 with the following settings:
wrm(0xff, 0x04, 0x0f) # change to Channel 0 page wrm(0x09, 0xfc, 0xff) # override a few controls wrm(0x14, 0x80, 0xc0) #…
Part Number: DS125DF410 Hi TI Team,
We want to generate the bin(EEPROM) file from the SigCon architect tool, because we did some changes(CH3 lane reversal & raw data output) to the low-level page. So, I request you that share the procedure.
Thanks…
Part Number: DS125DF410 We inspected the exported data from SigCon of the following eye diagram:
We noticed that the horizontal data length of the exported data is 128, twice the normal length of 64. It seems to us that SigCon just concatenates two identical…
Part Number: DS125DF410 Other Parts Discussed in Thread: DS250DF410 We are trying to understand the definitions of the registers and functional block better in DS125DF410. The datasheet uses both of the terms VCO and CDR and they look like two independent…
