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|
|Analog Devices||OptiCOm||9||Q3 2003|
|STMicroelectronics||CopperWing 12 port||12||Jan-04|
Vendors covered in the report include:
- Analog Devices Inc. (NYSE: ADI)
- Broadcom Corp. (Nasdaq: BRCM)
- Centillium Communications Inc. (Nasdaq: CTLM)
- Conexant Systems Inc. (Nasdaq: CNXT)
- GlobespanVirata Inc. (Nasdaq: GSPN)
- Ikanos Communications Inc.
- Infineon Technologies AG (NYSE/Frankfurt: IFX)
- LSI Logic Corp. (NYSE: LSI)
- Metalink Ltd. (Nasdaq: MTLK)
- Samsung Electronics Co. Ltd. (Korea: SEC)
- STMicroelectronics NV (NYSE: STM)
- Texas Instruments Inc. (NYSE: TXN)
— Peter Heywood, Founding Editor, Light Reading
Archives of Related Light Reading Webinars:
- Next-Gen B-RAS: The Money Makers
- Next-Gen DSLAMs
- Upstream of the DSLAM: Beating Broadband Bottlenecks
- Working Text 81: The B-RAS Blueprint