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LMH1219 : What exactly does HEO represent?

Part Number: LMH1219

What exactly does HEO represent?
What exactly does the HEO measured by the LMH1219 indicate?

Timming jitter?
Alignment jitter?

  • Hi Jinwoo,

    HEO is the Horizontal Eye Opening. This specifies eye opening from one eye crossing to another eye crossing. In a way, HEO specifies total jitter. This is not related to timming or alignment jitter. For timming and alignment jitter normally a filter is used to measure jitter within certain frequency band(Please refer to SMPTE standard specifications for more details).

    Regards,,nasser