Conexant Debuts DOCSIS 2.0 Modem


Conexant Systems Inc. is the latest member of the Data Over Cable Service Interface Specification 2.0 club with an announcement that it has developed a single-chip cable modem that includes the advanced physical-layer technology.

Conexant's new "CX24951" unit can support advanced time-division multiple-access (A-TDMA) and synchronous code-division multiple-access scheme (S-CDMA) schemes required under DOCSIS 2.0.

The latest addition to the DOCSIS family promises to triple the upstream bandwidth for DOCSIS-modem plants and to clear up interference problems in the upstream channel.

The first test wave is now under way at Cable Television Laboratories Inc., so there have been no certifications issued for DOCSIS 2.0 products yet.

In addition to the DOCSIS 2.0 functions, Conexant's new modem is DOCSIS 1.1/1.0 backward-compatible and offers 500 million instruction per second (MIPS) processing power. The enhanced processing power means the unit can also be used to support CableLabs' CableHome home-networking initiative, according to Conexant.

The CX24951 is currently available in samples, and it is set for full production in the first quarter of 2003.