DS90UB948-Q1: 948 layout standard

Hi Cathy, 

Are you asking about the intra-pair length matching or inter-pair length matching?

Regards, 

Logan

Hi Logan,

The intra-pair length matching. The inter-pair length is the same.

Regards,

Cathy

Hi Cathy, 

Are you sure? It seems like you were referring to inter-pair (each FPD-Link lane has a diff. pair) in previous post. 

Intra-pair needs to be length matched tightly.

The FPD3 max inter-pair skew is 1 pixel clock interval between the pairs. Note this is effective PCLK rate on a single FPD3 channel, rather than the full dual-channel datarate. i.e., input at 170MHz linerate, 1 pixel clock of skew (at 85MHz) amounts to ~11.8ns.

Regards, 

Logan

Hi Logan,

Sorry, it should be inter-pair. And the customer want to ask the LVDS requirement of inter-pair and intra-pair skew, cause they use the two lines for the same display.

Regards,

Cathy

Hi Cathy, 

The requirement for inter-pair skew is in my previous reply. 

Regards, 

Logan