Cable Tech

Report Outlines DSL Chip Advances

Recent advances in DSL chip technology that should result in big improvements in performance and big reductions in carriers costs are detailed in a Light Reading report published today (see DSL Chipsets). The report says the latest chips support standards aimed at making DSL services more attractive for both customers and carriers. The standards include ADSL2, which enables bandwidth to be adjusted automatically to cater for changes in line interference -- a development that should reduce truck rolls and customer churn, by improving service reliability. The standard also offers power-saving features, which further cuts operating costs, the report says.

Other standards include ADSL2+, which boosts bandwidths to 24 Mbit/s downstream and 3.8 Mbit/s upstream, and READSL (reach extended ADSL), which extends ranges of DSL lines by 2,000 to 3,000 feet.

The report also notes that semiconductor vendors are achieving much higher levels of integration in their latest chips. A 48-port line card now only requires six chips when using the latest chipsets from two vendors, Broadcom Corp. (Nasdaq: BRCM) and Texas Instruments Inc. (NYSE: TXN).

Table 1: DSL Chipsets for Central Office Equipment
Company Chipset Name Devices for a 48-port linecard Sample Availability
Texas Instruments AC7 6 Q4 2003
Broadcom BladeRunner 6 Production
Analog Devices OptiCOm 9 Q3 2003
STMicroelectronics CopperWing 12 port 12 Jan-04
Analog Devices Anaconda 15 Production
Ikanos SmartLeap 18 Not disclosed
Infineon GEMINA MAX 18 Production
STMicro-electronics CopperWing 18 Production
Analog Devices Diamondback 24 Production
Texas Instruments AC6 36 Production
Texas Instruments AC5 60 Production
Analog Devices Copperhead 120 Production

Vendors covered in the report include:

The report author is Simon Stanley , founder and principal consultant of Earlswood Marketing Ltd.. A Webinar previewing this report, entitled "Semiconductor Vendor Effects on DSL Operator Networks," is archived here

— Peter Heywood, Founding Editor, Light Reading

Archives of Related Light Reading Webinars:

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