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LMK00334-Q1: AC-coupled HCSL Input

Intellectual 390 points

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Part Number: LMK00334-Q1

Hi,

In  my design ,LMK00334-Q1 differential HCSL clock inputs are from one clock generator , I want to use AC-coupled between generator and LMK00034-Q1. In LMK00034-Q1 datasheet, I found that "The CLKin input has an internal bias voltage of about 1.4 V"(on Page16), but I didn't find that whether there was also internal bias volatage on CLKin * pin?

If CLKINX*pin(CLKIN0* and CLKIN1*) has no internal bias volatge, I think I need to use DC-coupled. In LMK00334-Q1 datasheet, VCMD(differential input common mode volatge) mimum value is 0.25V ,but the generator output common mode voltage minmum value is also 0.25V ,there is no margin, in this case, whether DC-coupled is OK?

Thank you.

Regards.

Gavin

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