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Please tell me how to read the specifications of CrossLink LVDS (7:1). There are two notations, UI and ns+(i+1/2)*UI, in the datasheet. What is the difference?
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デバイス : CrossLink
If the frequency is the maximum value of ECLK (fMAX_RX71_141 = 450MHz) and i=0, the two notations match.
Calculate specifically. At 450MHz, 1UI = 1 / (450MHz x 2) = 1.11 ns.
For tPRBi_DVA, the upper row is 0.3UI = 0.333ns. Assuming i=0 in the lower row,
-0.222 + (0 + 1/2) x UI = -0.222 + 1/2 x 1.11 = 0.333ns
and are equal. Similarly for tPRBi_DVE
Top: 0.7UI = 0.777ns, Bottom: 0.222 + (0 + 1/2) x UI = 0.222 + 1/2 x 1.11 = 0.777ns
and both give the same result.
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