Broadcom’s G.fast Silicon Supports Selective Upgrades on VDSL Systems

Broadcom has begun sampling a G.fast line card chipset promising Gigabit performance over currently installed twisted pair copper cabling.

The new BCM65200 DSP and BCM65900 analog front end VDSL chipset with on-chip vectoring and integrated G.fast support a new state-of-the-art DSP architecture to deliver unmatched levels of integration.  Incorporating up to 36 lines of VDSL2 or six lines of G.fast, plus high-speed vector interfaces that eliminate the need for external PHY and framing devices, the BCM65200/900 family delivers the most power-efficient system solution for high-density G.vector DSLAMs as well as new G.fast-based fiber-to-the-distribution point (FTTdp) architectures.

The new chipset also offers full backward-compatibility to existing VDSL and ADSL technologies, including simultaneous G.Fast and G.vector crosstalk cancellation.  This enables operators to selectively deploy G.fast to new customers in the same system as VDSL2.

Key features:

• 28nm process technology
• 36 ports of VDSL2 17a
• VDSL2 power consumption per port reduced up to 30 percent
• Multimode and auto-moding support, selectable per channel, simultaneous support of G.fast, G.vector, VDSL2 and ADSL protocols on a per line basis
• Support for chip-, board- and system- level vectoring modes
• Integrates all 10G-KR vectoring interfaces; lowering bill-of-materials, size and power consumption and providing direct interface to the line cards

“As an industry leader in G.vector and G.fast technologies, Broadcom is supporting the in-progress deployments and trials of operators evaluating cost-effective ways to boost the performance of their broadband services across existing access networks,” said Greg Fischer, Broadcom Senior Vice President and General Manager, Broadband Carrier Access. “Worldwide support for G.fast is growing as it enables operators to provide FTTH-like speeds without the cost associated with fiber deployments.”

Broadcom already offers a silicon portfolio for residential home gateways, including the BCM63138 with full support for G.fast and G.vector deployments.

http://www.broadcom.com