Date: Wed, 05 Mar 2008 09:24:22 +0000 From: Dieter <freebsd@sopwith.solgatos.com> To: freebsd-multimedia@freebsd.org Subject: demodulator chip datasheet (was: Re: Driver for Asus P7131 and other SAA-based cards ?) Message-ID: <200803051724.RAA00296@sopwith.solgatos.com> In-Reply-To: Your message of "Wed, 05 Mar 2008 09:43:50 %2B0100." <20080305094350.uvjnrwie8g8ck00w@webmail.leidinger.net>
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> If someone stumbles by chance upon the programming documentation of a > DVB-S2 or even a DVB-S chip, I'm all ears. But I think all digital > stuff is locked away because of some legal stuff from holliwood (DRM), > even if it is about free TV stations. See if TI has a DVB chip. The other day I finally found an ATSC/8VSB (and QAM) demodulator chip with a datasheet. The TI TVP9900 Claims to exceed A/74 and have "Superior Multipath Performance Demodulating for Brazil Ensembles A Through E". Supports "smart" antennas. (I'm not convinced that smart antennas are worth bothering with. Every tuner would need its own antenna, and it sounds like the antennas aren't that great. But hey, having support for it is better than not having it.) US$6 in quantity "1ku" (does that mean 1000?) http://focus.ti.com/docs/prod/folders/print/tvp9900.html http://www.digitaltvdesignline.com/showArticle.jhtml?printableArticle=true&articleId=199701903 I was hoping the datasheet would tell how to get the coefficients being used for the equalizer taps, but it doesn't appear to even mention them. :-( I can't find much on sibling chips TVP9007 or TVP9010. :-( It appears that the TVP9007 includes a mpeg decoder. At least one ATSC-to-NTSC convertor box uses a TI 9xxx chip. Does anyone know of a TI 9xxx based card/box with a computer interface (Ethernet, Firewire, PCIe/PCI, ...) ? ---- On the mpeg decoding front, the penguins have xv working on AMD/ATI up through R500 based on the recent docs that AMD/ATI released. The R600 chips may or may not get video decoding documented due to it being mixed in with the DRM crap.
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