Wave Issue 0207 3/4/02 Article 4-01

***Infineon Technologies Introduces 4-Band VDSL Chipset Family
With Support for Standards Compliant ATM Functionality and Packet
Over VDSL
(February 28)

Infineon Technologies, a provider of integrated circuits for
communications systems, today introduced a 4-Band VDSL chipset
family featuring two distinct functionalities. The 4bVDSL chipset
is a fully standards compliant ATM over VDSL solution, and the
PoVDSL chipset is the industry's first Packet over VDSL solution.
Infineon will introduce these chipsets at the FS-VDSL meeting,
March 4-6 in Denver, Colorado.

Development of standards-based 4-band VDSL supports an open
environment for multi-vendor solutions. The newly adopted VDSL
standard allows for up to three video channels and fast Internet
access per each line, while leaving legacy voice services
unaffected.

The 4-Band VDSL chipset family is fully compliant with ETSI, ANSI
and the recently expanded ITU VDSL standards requirements. The
Packet over VDSL chipset goes beyond the ITU standard's
definition and includes full Ethernet MII layers above the packet
transport interface.

With all functionalities integrated within the chipset,
Infineon's 4-Band VDSL solution reduces the number of required
external components. This integration can help to reduce total
cost by lowering the overall bill of material (BOM), reducing
system footprint and lowering design complexity at both ends of
the network.

As with the 2-band chipset, the 4bVDSL and PoVDSL chipsets use
Frequency Division Duplexing (FDD) and are based on the widely
deployed Quadrature Amplitude Modulation (QAM). The chipsets
support both the asymmetrically optimized FSAN Plan 998 as well
as symmetrically optimized FSAN Plan 997 and offer 2, 3 or 4-band
standard as well as non-standard frequency allocation schemes,
providing flexibility in meeting carrier cost and application
requirements.

About the 4-band VDSL Chipsets

The chipsets feature "all-in-one" circuitry including embedded
interleaver memory, microprocessor, anti-aliasing filters, gain
amplifier, DCXO, ADC and DAC. Both chipsets fully support fast
and slow channels, sleep and wake up modes, power back off, blind
acquisition and channel equalization. The 4bVDSL and PoVDSL have
an integrated controller and flexible software, allowing for
operation of the modem as a stand-alone VDSL PHY.

The 4bVDSL ATM based chipset features a dual-latency UTOPIA
interface as well as a built-in PCM interface -- and is able to
transport up to four E1/T1/J1 lines using the same twisted pair.
The PCM transport is in parallel to ATM traffic. The 4bVDSL can
also operate in RFC-1483 mode, allowing Ethernet traffic
encapsulation over the ATM.

The PoVDSL features an MII interface (IEEE 802.3) supporting PTM-
TC (HDLC) as per ITU-T G.993.1 standard definition. A PCM
transport is in parallel to PTM traffic. The PoVDSL chipset
extends Infineon's Ethernet service delivery with functionality
as a standards-compliant 2, 3, or 4-Band PHY or MAC depending on
the application, with backward compatibility support for the
existing base of 100s of thousands of 10BaseS(TM) VDSL ports.

Infineon's 4bVDSL and PoVDSL chipsets are optimized for DSLAM,
switch, and CPE applications.

Engineering Samples of Infineon's all-inclusive 4-Band VDSL
chipset family will be available at the start of Q2/2002.

www.infineon.com