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ADV7340 NTSC Horizontal Blanking Rise time

Question asked by Vladi215 on Dec 30, 2015
Latest reply on Jan 5, 2016 by PaulS


I am operating the ADV7340 component at a standard resolution of 640*480 squre pixel with composite output. According to specification the Horizontal Blanking Rise\Fall time should be 140+-20ns.


When setting SD active video edge controll bit at register 82 to "1" I get the required results but when setting it to "0" I get fall time of 50ns that appears to be not according to the standard.


Could you please explain the nature of this deviation from the standard and advice me what to do.


Best regards,