Mult-Rate 100GbE Gearbox PHY features monolithic construction.

Press Release Summary:

Optimized for next-generation cloud-scale data center, enterprise, and core networks, BCM82792 offers dual 100 Gbps ports on single gearbox chip, operates at 2 W per port, and supports CR4 and SR4 links. This 28 nm CMOS PHY can multiplex and demultiplex data across eight 25 Gbps channels to or from twenty 10 Gbps channels. Additionally, configuration allows support of 8 bi-directional lanes at 10 Gbps for 10GbE or 40GbE pass-through applications.

Original Press Release:

Broadcom Announces Industry's Highest Performance, Lowest Power 100GbE Gearbox PHYs

Provides New Interconnect Capabilities for Next Generation of 100GBASE Modules

IRVINE, Calif. --

News Highlights:

--  First device to offer monolithic, dual port,100 Gigabit Ethernet gearbox

--  Industry's first device to support widely used CR4 and SR4 Links

--  Enables high density 100G line cards

--  28 nanometer (nm) CMOS PHY reduces power consumption up to 30 percent(1)

Broadcom Corporation (NASDAQ: BRCM), a global innovation leader in semiconductor solutions for wired and wireless communications, today announced the industry's highest performance, lowest power multi-rate 100 Gigabit Ethernet (GbE) gearbox physical layer transceiver (PHY), optimized for next-generation cloud-scale data center, enterprise and core networks. The 28 nm Broadcom® BCM82792 PHY, is the first device to offer dual 100 Gigabit per second (Gbps) ports on a single gearbox chip and doubles the density of existing solutions while reducing power consumption by up to 30 percent, operating at 2 watts per port(1). For more news, visit Broadcom's Newsroom.

The rapid growth of bandwidth consumption across data center, enterprise and core networks is driving the transition of line cards and systems from 10G/40G to 100G. Poised for rapid expansion, the 100G Ethernet market is expected to grow five-fold by 2016, according to analyst firm Infonetics(2).  High-performance PHYs that support physical medium dependent (PMD) sub layers, such as 100GBASE-SR4 and CR4, are a critical component for this rapid growth.

Optimized for high-bandwidth networks, the dual-port Broadcom gearbox PHY has the ability to multiplex and demultiplex data across eight 25 Gbps channels to (or from) twenty 10 Gbps channels. The device can also be configured to support eight bi-directional lanes at 10 Gbps for 10GbE or 40GbE pass-through applications. High performance 25G/10G input/output (IO) eases routing constraints by providing for longer physical links.

"Next generation 100G networks demand the high performance, low power technologies that Broadcom is uniquely positioned to deliver," said Lorenzo Longo, Broadcom Vice President and General Manager, Physical Layer Products. "These first to market gearbox devices demonstrate our commitment to providing superior innovation and delivering a comprehensive portfolio of products to enable high density 100G networks."

"We're seeing strong demand for higher bandwidth solutions in data center, enterprise and core networks to handle the growth in network traffic," said Matthias Machowinski, Infonetics Directing Analyst, Enterprise Networks. "The higher density and low power consumption of Broadcom's new PHY will allow network managers to transform their networks and achieve higher performance on the industry's most widely adopted copper and short range links."

Broadcom also offers the BCM82790, a single port version of its 28 nm gearbox technology. This device delivers an easy upgrade path in a drop-in package compatible with Broadcom's current gearbox PHY.

Key Features:

--  First IEEE802.3bj Clause 91 forward error correction (FEC) gearbox PHY

--  Three-dimensional eye mapper on each high-speed receiver (28 total)

--  100GbE/OTN VSR28 to CAUI interface

--  Integrated clean-up phase lock loop (PLL) reduces bill of material cost

--  Single REFCLK (reference clock) input

--  Low latency architecture


(1) As compared to competitive devices

(2 )Infonetics August 2014


Broadcom's BCM82792 dual port and BCM82790 single port gearbox PHYs are now sampling.

About Broadcom 

Broadcom Corporation (NASDAQ: BRCM), a FORTUNE 500® company, is a global leader and innovator in semiconductor solutions for wired and wireless communications. Broadcom® products seamlessly deliver voice, video, data and multimedia connectivity in the home, office and mobile environments.  With the industry's broadest portfolio of state-of-the-art system-on-a-chip solutions, Broadcom is changing the world by connecting everything®.  For more information, go to

Broadcom®, the pulse logo, Connecting everything(®) and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU.  Any other trademarks or trade names mentioned are the property of their respective owners.


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