Hassan, I found a buffer made by TI (SN65LVDS100/101) which has a wide common mode input range which should be able to receive the TMDS signal using DC coupling. It also appears the output can be biased to 2.0V which is compatible with the CML part I want to interface to. I think it could also beused to go from CML to TMDS. What do you think? Joel Hassan O. Ali wrote: Joel, The answer is generally no - except if you're using special receivers that can reverse the effect of ac-coupling (dc offsetand pulse width distortion). Those receivers do exist out there. If youuse ac-coupling caps with high enoguh value (in uF range) and if the receiver has a low enough low frequency cut-off you can successfully ac-couple your driver and receiver. Best regards. Hassan. On Jul 03, Joel Brown <joel@xxxxxxxxxx>[1] wrote: Is it possible to AC couple (using capacitors) HDMI or DVI signals? We need to feed DVI signals which are biasedto 3.3V into a part that uses CML levels that are biased to 2.0V. Thanks - Joel --- Links --- 1 mailto:joel@xxxxxxxxxx -- Binary/unsupported file stripped by Ecartis -- -- Type: text/x-vcard -- File: joel.vcf ------------------------------------------------------------------ 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu