<div dir="auto">May be I read it wrong but table 10 suggest it can even output 20 bit (!!!) yuv for no reason ?? (input ADC only 10 bit)<div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Note, very early version without any letter at the end seems to say "9 bit ADC". Also, some versions may support "16 bit port" or "8 bit port" depending on exact packaging!<br><div dir="auto"><br></div><div dir="auto"><a href="https://web.archive.org/web/20221006213255/https://www.analog.com/media/en/technical-documentation/data-sheets/adv7181d.pdf" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">https://web.archive.org/web/20221006213255/https://www.analog.com/media/en/technical-documentation/data-sheets/adv7181d.pdf</a><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Four 10-bit ADCs sampling up to 75 MHz </div><div dir="auto">10 analog input channels </div><div dir="auto">SCART fast blank </div><div dir="auto">support Internal antialiasing filters </div><div dir="auto"><br></div><div dir="auto">GENERAL DESCRIPTION </div><div dir="auto">The ADV7181D is a high quality, single-chip, multiformat video decoder and graphics digitizer. This multiformat decoder supports the conversion of PAL, NTSC, and SECAM standards in the form of composite or S-Video into a digital ITU-R BT.656 format.<br></div><div dir="auto"><br></div><div dir="auto">At least 10 bit yuv 4:2:2 seems to be real at chip level</div><div dir="auto"><br></div><div dir="auto">"10-Bit SDR ITU-R BT.656"<br></div><div dir="auto"><br></div><div dir="auto">I have no idea if there even way to store 20bit per component yuv ....</div><div dir="auto"><br></div><div dir="auto">But board for it will be definitely not beginner's project:</div><div dir="auto"><br></div><div dir="auto"><a href="https://electronics.stackexchange.com/questions/311491/adv7180-breakout-board-critique-sought" rel="noreferrer noreferrer" target="_blank">https://electronics.stackexchange.com/questions/311491/adv7180-breakout-board-critique-sought</a><br></div><div dir="auto"><br></div><div dir="auto">slightly different board but high-speed challenges outlined ...</div><div dir="auto"><br></div><div dir="auto">Apparently some of those chips (same family) were used in some Blackmagick devices but not necessary in best for vhs config?</div><div dir="auto"><br></div><div dir="auto"><a href="https://www.digitalfaq.com/forum/video-capture/4356-dazzle-dvc107-video.html" target="_blank" rel="noreferrer">https://www.digitalfaq.com/forum/video-capture/4356-dazzle-dvc107-video.html</a><br></div><div dir="auto"><br></div><div dir="auto">====</div><div dir="auto"><br></div><div dir="auto"><div style="margin:0 10px 0 10px" dir="auto">And I just
received a reply from the Australian BlackMagic Design distributor,
confirming that their Intensity Pro card uses the ADV7180. Though they
tell me it doesn't handle timebase errors well, and they recommend an
external TBC! That's disappointing! Sounds like it's been configured for
very stable professional equipment.
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Last edited by AusDaz; 07-15-2012 at 09:04 PM.
Reason: Updated info </em></div><div style="margin:25px 0 0 0" dir="auto"><em>====</em></div><div style="margin:25px 0 0 0" dir="auto"><em>note, 10 years later we have some software to try ... I successed in compiling vhs-decode branch of ld-decode, at least mains script do not err out on my Slackware, so ..... :-)</em></div><div style="margin:25px 0 0 0" dir="auto"><em> </em></div></div></div></div></div>