1394b hits home video and audio products

The availability of IEEE 1394b devices enables much greater distances and higher performance for home networking and entertainment applications such as whole house video and audio. The plug-and-play,quality of service and other ease-of-use features inherent to FireWire provide consumers with a user-friendly home entertainment networking system.

“People are spending more time in their homes enjoying video games, DVDs, High Definition TV and personal A/V content. The desire for connecting and sharing these applications among multiple users inthe home is increasing, and we see a strong demand for 1394b enabled products to move multimedia, internet protocol and data at high rates over great distances within the home,” said Belal Ahmad,business manager for TI’s Consumer Electronics Networking group.

The TSB41BA3 is a three-port bilingual physical layer (PHY) device capable of speeds up to 400 Mbps, compliant with the approved version of the IEEE 1394b-2002 specification. This IEEE 1394b-2002 PHYincreases communication distances up to 100 meters over Cat5, glass optical fiber (GOF) or plastic optical fiber (POF) cabling, ensuring a much better user experience in high speed data transfers andmultimedia networking.

The TSB41BA3 is backward-compatible with 1394a devices and supports both the data strobe encoding scheme of IEEE 1394a-2000 and the new 8B/10B encoding scheme for 1394b-2002. It also allows for anycable topology to be used, as loops will be automatically detected and corrected.

TI is also introducing the TSB17BA1 transceiver, a companion device to the TSB41BA3, enabling a 1394b home networking solution over Cat5 cable. The TSB17BA1 is a one-port, 100 Mbps transceiverspecifically designed for 1394b connections over Cat5 cable.


Design-in support includes datasheets, reference schematics, implementation notes, layout examples with guidelines, software recommendation and 1394b tools recommendations. The TSB41BA3 is available today in an 80-pin PFP package in 1K quantities for $6.50. The TSB17BA1 is available in a 24-pin TSSOP package in 1K quantities for $2.50.

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