About the terminator of DDR3L memory of LS1020A.

[masaakiuno]

Hello,

I am watching a connection diagram of LS1021A-twr.

A terminating resistance of CLK of DDR3 of P1010RDB is just between± 100 Ω.

LS1021A-twr adds a condenser to 72 Ω of resistance, and is connected to GVDD.

Is this circuit the specification of LS102xA? Or is there a different reason?

In particular, I can't understand the reason that a condenser exists by this circuit.

Best Regards,

Maaski.Uno

[ufedor]

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