
576i PAL
composite video 44
1135 1 709379
4 625 2500
= 283.7516
There are 709379 samples in
a composite 4/s c PAL frame.
This chapter details the formation of 576i PAL-B/G/H/I
composite video, and S-vicleo-625. I assume that you
are familiar with
576i component video
on page 519.
I describe 576i PAL by explaining its differences from
480i NTSC, so I assume that you are quite familiar with
NTSC composite video, described on page 511.
Subcarrier
Synchronous with the 576i raster is a pair of contin-
uous-wave subcarriers having exactly 283.7516 cycles
per total raster line: a sine-wave (hereafter