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LMK00804B: Q output termination configuration

Prodigy 50 points

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Part Number: LMK00804B

Hi Team,

We are using LMK00804BPW as synchronizer for 3 other LMX2594RHAR. The Q outputs of LMK are directly connected to the SYNC inputs of LMX without any series resistor or pull-up on the lines. A note in datasheet of LMK states: "Outputs terminated with 50 Ω to VDDO/2." does this mean a 50ohm pull-up to be connected externally? Could you please elaborate on this note?

Also, In EVM of LMK, a 43ohm is used in series with the output. Should it be included in the design and how does it correlate with the 50ohm pull-up mentioned in the note above.


Thanks,
Sultan.