Digital Video and HD, 2nd Edition

44

Component analog HD interface

Component analog HD signals are interfaced in the analog domain as Y’P _B P _R signals conveyed as voltage. Luma ranges 1 V_PP from synctip to reference white. Aluma signal of zero – blanking level, equal to reference black – corresponds to a level of 0 V_DC. A luma signal of unity corresponds to 700 mV. Transient excursions slightly outside the reference black-to-white range are permitted.

Sync is added to luma according to Equation 44.1, where sync and active are taken to be unity when asserted and zero otherwise:

Eq 44.1

The excursion of the Y’ signal from synctip to reference white is 1 V_PP . One IRE unit corresponds ...