Roy , What type of Video interface are you talking about? SDI , Analog, HDMI, ... Leonard Dieguez So-Logic-Cal engineering “There are two kinds of engineers — those who have signal integrity problems, and those who will.” – Eric Bogatin. Savannah Cat related: - lifeatthesharpend productions - Spotted Love Savannahs :www.spottedlove.com - YouTube Videos: www.youtube.com/lifeatthesharpend - internet radio show: www.blogtalkradio.com/cattalkradio ----- Original Message ---- From: Roy M <roymesi@xxxxxxxxx> To: si-list all <si-list@xxxxxxxxxxxxx> Sent: Mon, February 7, 2011 2:42:54 AM Subject: [SI-LIST] AC coupling at video circuits Hi, How do I know which is the correct value for AC coupling in video interfaces (i mean the cap value)? I saw some circuits using 10uF while others use much less... both worked, by the way... is there some kind of rule of thumb for that issue? Regards, Roy ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu