DS90CR485 Datasheet, PDF (13/16 Pages) National Semiconductor (TI) – 133MHz 48-bit Channel Link Serializer (6.384 Gbps)

Applications Information (Continued)
jUse the S/2S/3S rule in spacings (S = space between the
pair, 2S = space between the pairs, 3S = space to TTL
signal)
jMinimize the number of VIA
jUse differential connectors when operating above
500Mbps line speed
jMaintain balance of the traces
jMinimize skew within the pair
jMinimize skew between pairs
jTerminate as close to the RX inputs as possible
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