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LMH0346 - Reference Clock

Guru 19775 points
Other Parts Discussed in Thread: LMH0346

Hi Team,

I have some question about the reference clock.

[Q1]
I am looking at the User Guide of SD3GDAEVK.
LMH0346 schematic uses "ABRACON ABMM-27.000MHZ-B2-T" crystal.

Do you have any other proven crystal information ?

* I am understanding the required specification, Datasheet p.13 "Table 3"

[Q2]
When using XO for Reference Clock, I believe XO CMOS 27MHz clock should be input to XTAL IN / EXT CLK pin.
Can you just leave XTAL OUT pin OPEN ?

Best Regards,
Kawai