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Infineon unveils ATM, packet over VDSL solution

Posted: 05 Mar 2002 ?? ?Print Version ?Bookmark and Share

Keywords:infineon technologies? infineon? networking chipset? data communication ic? network ic?

The company has announced the release of the 4bVDSL standard-compliant ATM over VDSL solution and the PoVDSL packet over VDSL solution, enabling telecommunications equipment manufacturers to produce broadband over copper DSLAMs, switches, and CPE systems offering the highest possible broadband transmission rates.

"Telecommunications companies have been eagerly seeking a true, broadband over copper solution to meet market demand for a 'triple play' of integrated fast Internet access, video with high quality streaming media, and voice services delivered over the same copper wire," said Christian Wolff, VP of Infineon's Communications Group and GM of the Access Business Unit.

Based on and backward-compatible with the company's two-band VDSL chipsets, the four-band solutions utilize FDD and QAM transmission schemes. They include an embedded interleaver memory, microprocessor, AAF, gain amplfier, CXO, ADC, and DAC devices.

Both chipsets 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 defined by the ITU-T G.993.1 standard. A PCM transport is in parallel to PTM traffic. The chipset extends Ethernet service delivery with functionality as a standards-compliant 2, 3, or 4-band PHY or MAC depending on the application.

The chipsets are fully-compliant with ETSI, ANSI and the recently expanded ITU VDSL standards requirements that allows for up to three video channels and fast Internet access per each line, while leaving legacy voice services unaffected.

They also 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.





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