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LMK61PD0A2: layout question

[FAE] Andrew Wang
Genius 10685 points

Part Number: LMK61PD0A2

Hi Team,

Customer wants to know about OSC layout.

Is it good to place a big, continuous ground plane under the LMK61?

Thanks!

Andrew

  • 0
    TI__Mastermind 32575 points

    A solid reference/ground plane is necessary to maintain proper controlled impedances (50-ohm Zo or 100-ohm Zo-diff) for the output clock traces.

    Also, the datasheet layout guidelines recommends multiple ground traces and ground vias connected from Pin 4 (GND) to PCB ground layers for good thermal & electrical performance.

    Regards,
    Alan