Philips SAA7146: Difference between revisions

From LinuxTVWiki
Jump to navigation Jump to search
(some fixes)
m (some fixes)
Line 1: Line 1:
A [[PCI interface chipsets|PCI interface chipset]] from [[Philips]] initially intended as Multimedia interface for analog Audio and Video.
A [[PCI interface chipsets|PCI interface chipset]] from [[Philips Semiconductors|Philips]] initially intended as a multimedia interface for analog audio and video.


The IC was adjusted to work with [[DVB]] by packing the sampled [[MPEG-2 Transport Stream]] data into the video lines of the IC. This hackish approach works surprisingly well in most setups, and only a few have problems with high data loss. The saa7146 chipset's direct successor, the [[Philips SAA7134|SAA7134]], has a a dedicated digital stream interface.
The IC was adjusted to work with [[DVB]] by packing the demodulated [[MPEG-2 Transport Stream]] data into the video lines of the IC. This hackish approach works surprisingly well in most setups, and only a few have problems with high data loss. A moral formal approach was implemented in the saa7146 chipset's direct successor, the [[Philips SAA7134|SAA7134]], which has a a dedicated digital stream interface.


The SAA7146 is used on a number of older generation DVB cards, such as the [[Siemens]] DVB cards, [[TechnoTrend]] PCI cards, [[KNC1]] DVB cards and [[TerraTec]] DVB cards.
The SAA7146 is used on a number of older generation DVB cards, such as the [[Siemens]] DVB cards, [[TechnoTrend]] PCI cards, [[KNC1]] DVB cards and [[TerraTec]] DVB cards.

Revision as of 17:45, 6 December 2008

A PCI interface chipset from Philips initially intended as a multimedia interface for analog audio and video.

The IC was adjusted to work with DVB by packing the demodulated MPEG-2 Transport Stream data into the video lines of the IC. This hackish approach works surprisingly well in most setups, and only a few have problems with high data loss. A moral formal approach was implemented in the saa7146 chipset's direct successor, the SAA7134, which has a a dedicated digital stream interface.

The SAA7146 is used on a number of older generation DVB cards, such as the Siemens DVB cards, TechnoTrend PCI cards, KNC1 DVB cards and TerraTec DVB cards.

Warning !!!

align=left In 2.6.27 and possibly other kernel versions, the Alsa snd-aw2 driver will blindly grab all saa7146 devices preventing them from working. Blacklist the snd-aw2 driver to prevent this happening.

External Links

Retrieved from "https://www.linuxtv.org/wiki/index.php?title=Philips_SAA7146&oldid=18732"