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TDA3LX: DDR3 routing guide for termination

Sung-IL
Mastermind 30820 points
Part Number: TDA3LX

Dear Champs,

I found the CK and ADDR_CTRL net classes should be routed similarly and be lengh matched to minimize skew between them, and I think this restriction is for the routing between TDA3 and DDR3 memories.

But, I'm not sure if this restriction is also applied between DDR3 and termination regulators, and the lines between DDR3 and termination regulators should be matched.

Could you please let me know the restrictions of the lines between DDR3 and termination regulators?

Thanks and Best Regards,

SI.

  • 0
    TI__Mastermind 38200 points

    Hi,

    Please refer to parameters CARS312, CARS313, and CARS314 in Table 8-44 "CK and ADDR_CTRL Routing Specification" in the data manual (SPRS964G) for the restrictions of the CA bus between the DRAM and termination.

    Best regards,
    Kevin