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LMK03806: LMK03806 -OSCin

user4852401
Prodigy 125 points
Part Number: LMK03806

HI:

   TI!

   I have a problem with the lmk03806 input reference clock .

1.in the LMK03806 datasheet ,an external lvds reference clock is connected as follows ,

The 100R terminal resistance is in front of the ac coupling capacitance.

2.external reference clock source I select LMK61A2-100M00,(100MHZ,LVDS output)the output interface as follows：

the 100R terminal resistance behind ac coupling capacitor 

3.My question

I would like to use lmk61a2-100m00 as the input reference clock for lmk03806,How to connect the terminal resistance ?

  • 0
    TI__Genius 16845 points

    Place the 100-ohm differential termination before the AC-coupling capacitors for LMK03806. 

    From datasheet section 9.1.3: "The LMK03806 internally biases the input pins so the differential interface should be AC coupled."

    Kind regards,
    Lane