ADV7842 fails to detect NTSC properly

Discussion created by Elastino on Nov 8, 2010
Latest reply on Nov 11, 2010 by DaveD

Subject : ADV7842 failes to detect NTSC on CVBS with certain pattern.


Symptom : Confueses NTSC as SECAM with 1-px frame pattern.


Condition :

Without 1-px frame, it works properly.

With 1-px frame, it losts burst lock and detect as SECAM.


Workaround :

Disable SECAM from auto detection lists


Referene :

SMPTE 170M Composite Video Signal


Source appratus:

Shibasoku TG45AX