Texas Instruments has launched a DOCSIS Set-top Gateway (DSG) reference design for cable set-top box and digital television manufacturers.
The software/hardware combo is based on TI's Puma TNETC460x DOCSIS cable modem chip and a transceiver that supports legacy out-of-band signaling and a CableCARD interface. The design also features several port options, including, 10/100 Ethernet and USB 1.1/ USB 2.0, that interface with the set-top or digital television host processor.
Developed by CableLabs, DSG enables signaling over standard DOCSIS links. Operators will use DSG to deliver guide data initially, but down the road will also leverage it for the evolving downloadable conditional access system (DCAS).