E
Appendix E HDTV Output Mode
NOTE(S): Warning: Conexant is Pursuing Multiple Patents surrounding this Function
E.1 Introduction
A high definition television system can display images that are better than
existing standard definition TV formats such as NTSC, PAL, and SECAM.
HDTV pictures are more true-to-life because the resolution of the TV image is
much higher, and the colors are more accurate.
Many HDTVs are being equipped with a HD Input port that accepts analog
Component YPBPR or analog RGB or both.
Recognizing this fact, Conexant has included an HDTV Output Mode within
the CX25870/871 which generates the analog Component YPBPR or analog RGB
outputs necessary for driving an HDTV’s HD Input port(s).
While in HDTV mode, the device will output either analog RGB or analog
YPBPR signals and automatically insert trilevel synchronization pulses (when
necessary) and vertical synchronizing broad pulses. The output waveforms and
requirements related to the input timing and data on the input side of the
CX25870/871 are explained in this section and in the various SMPTE standards
governing the HDTV resolutions as listed in Table E-5.
100381B
Conexant
E-1
CONEXANT [ CONEXANT SYSTEMS, INC ]
