LMK04828 doubt

Moon Mars

Other Parts Discussed in Thread: LMK04828

Hi,

In LMK04828 how can I bypass the "SDCLKoutY_DDLY" in register 0x104? (Page 54 in datasheet)

And register 0x13c,0x13d is for "SYSREF_DDLY", what's the units of these value? VCO cycles or else?(Page 59)

Hope answers, thanks.

0 Brian Wang over 11 years ago

Hi Moon,

For SDCLKoutY_DDLY, you can bypass by setting the value to 0 (details in page 59 of datasheet).

The units for SYSREF_DDLY is half a period of the VCO frequency so for example if you have 2 GHz VCO, each step is 250ps.

Let me know if you have other questions. Thanks!

Regards,

Brian Wang

0 Moon Mars over 11 years ago in reply to Brian Wang

Hi,

Very appreciated for your answer.

Cause the datasheet says '0' is 'reserved' so I don't know how to bypass.

Thanks!

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